Sentence Structure
30 free practice questions with explanations
PassNova has 30 free KS2 SATs English practice questions on Sentence Structure, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Sentence Structure: example questions & answers
30 worked examples with answers and explanations below. Practise them in the browser with instant feedback on every answer.
Which is a simple sentence?
- AThe cat sat and the dog played.
- BThe cat sat on the mat.✓
- CWhen the cat arrived, the dog barked.
- DThe cat sat, but the dog played.
Answer: A simple sentence has one main clause with a subject and verb. 'The cat sat on the mat' is simple.
Which is a compound sentence?
- AShe read the book and she enjoyed it.✓
- BBecause it rained, the match was cancelled.
- CThe team that won the match celebrated.
- DThe children played games.
Answer: A compound sentence joins two independent clauses with a co-ordinating conjunction. 'And' joins the two clauses here.
Identify the complex sentence:
- AI like the red apples in the fruit bowl.
- BI like apples.
- CI like red apples and sweet green grapes.
- DI like apples because they are sweet.✓
Answer: A complex sentence has a main clause and a subordinate clause. 'Because they are sweet' is subordinate.
What type of sentence is this? 'Although she was tired, she finished her work.'
- ACompound
- BSimple
- CComplex✓
- DCompound-complex
Answer: This is a complex sentence. 'Although she was tired' is a subordinate clause; 'she finished her work' is the main clause.
Combine these sentences: 'It was raining. We went outside.'
- AIt was raining outside.
- BIt was raining and outside.
- CIt was raining we went outside to play football.
- DAlthough it was raining, we went outside.✓
Answer: Using a subordinating conjunction like 'although' creates a complex sentence showing the relationship between the ideas.
Which sentence structure is correct? 'The teacher explained the lesson and the students listened carefully.'
- ACompound✓
- BComplex
- CSimple
- DFragment
Answer: This is compound. Two independent clauses are joined by 'and'.
Identify the error in: 'Because the match was cancelled. The team stayed home.'
- AIt should be two sentences
- BIt should have a comma, not a full stop✓
- CIt should have a capital letter at the start
- DIt should be a simple sentence
Answer: This is a sentence fragment. 'Because the match was cancelled' is a subordinate clause and needs a main clause.
Which correctly combines these sentences into one? 'The dog barked. The cat hissed.'
- AThe dog barked. The cat hissed.
- BThe dog barked and the cat hissed.✓
- CThe dog barked, the cat hissed.
- DThe dog barked the cat hissed.
Answer: Two main clauses can be joined into one sentence with the conjunction 'and'. Leaving them as two sentences does not combine them, a comma on its own is not strong enough to join them, and running them together with no joining word makes a run-on sentence.
What is the main clause in: 'When the sun set, the stars appeared.'
- Asun set, the stars
- BWhen the sun
- CThe stars appeared✓
- DWhen the sun set
Answer: 'The stars appeared' is the main clause. 'When the sun set' is the subordinate clause.
Identify the sentence type: 'The children ran to school, but they were still late.'
- ACompound✓
- BSimple
- CFragment
- DComplex
Answer: This is compound - two equal clauses joined by 'but'.
Which is a complex sentence?
- AThe cat slept.
- BThe cat and the dog slept on the warm rug.
- CThe cat slept and the dog played outside.
- DThe cat slept while the dog played.✓
Answer: 'While' is a subordinating conjunction joining a main clause and a subordinate clause.
Fix this sentence fragment: 'If the weather is nice tomorrow.'
- AIf the weather is nice tomorrow and if it is warm and sunny.
- BThe weather is nice tomorrow.
- CIf the weather is nice tomorrow.
- DIf the weather is nice tomorrow, we will go to the park.✓
Answer: A subordinate clause needs a main clause to be complete. Adding 'we will go to the park' completes the sentence.
Identify the subordinate clause: 'She ate her dinner before she played.'
- AShe ate her dinner
- Bate her dinner before
- Cbefore she played✓
- DShe played
Answer: 'Before she played' is a subordinate clause that depends on the main clause 'She ate her dinner'.
Which pair correctly creates a compound sentence?
- AWhen it was cold, we went out.
- BAlthough it was cold, we went out.
- CWe stayed inside, and it was cold.✓
- DWe went out because it was cold.
Answer: 'And' is a co-ordinating conjunction that creates a compound sentence by joining two independent clauses.
Classify this sentence: 'The book that I borrowed was exciting, and I finished it quickly.'
- ASimple
- BCompound-complex✓
- CComplex
- DCompound
Answer: This is compound-complex: 'The book that I borrowed was exciting' is complex (with relative clause), joined to another clause with 'and'.
Which sentence is a compound sentence?
- AThe rain fell all afternoon.
- BRunning quickly down the hill.
- CWe packed a picnic, but the rain ruined it.✓
- DBecause the bus was late.
Answer: A compound sentence joins two clauses that could each stand alone, using a conjunction like and, but or so. 'We packed a picnic' and 'the rain ruined it' both work by themselves. A is one clause, B and D cannot stand alone.
Which sentence is a compound sentence?
- AWhile the dog played, the kitten slept peacefully
- BThe dog, who loved fetch, raced around excitedly
- CThe dog played fetch and the cat slept inside✓
- DThe excited dog played fetch outside after lunch
Answer: A compound sentence has two or more independent clauses joined by a conjunction (like 'and', 'but', 'or'). 'The dog played fetch and the cat slept' has two independent clauses joined by 'and'.
Which sentence is a complex sentence?
- AThe children played games in the park after school
- BThe children played games and the teachers watched them
- CThe children played happily outside in the sunshine
- DBecause it was sunny, the children played outside✓
Answer: A complex sentence has one independent clause and at least one dependent clause. 'Because it was sunny' is dependent and 'the children played outside' is independent, joined by the subordinating conjunction 'because'.
Identify the subject of this sentence: 'The ancient temple with its tall pillars stands majestically.'
- Astands
- Bancient temple with its tall pillars stands
- CThe ancient temple with its tall pillars✓
- Dancient temple
Answer: The subject is 'The ancient temple with its tall pillars' - it's the complete subject including all the words that modify it. 'Stands' is the verb, not the subject.
Identify the predicate of this sentence: 'The children eagerly opened their presents on Christmas morning.'
- Athe children
- Bopened their presents
- CThe children eagerly opened their presents on Christmas morning
- Deagerly opened their presents on Christmas morning✓
Answer: The predicate is everything that's said about the subject. It includes the verb and all related information about what the subject is doing or being.
Which sentence is in passive voice?
- AThe chef is preparing the meal
- BThe meal was prepared by the chef✓
- CThe chef prepared the meal
- DThe meal preparing was done by the chef
Answer: Passive voice puts the object first and shows the action being done to it. 'The meal was prepared by the chef' is passive. 'The chef prepared the meal' is active voice.
Which sentence is in active voice?
- AThe homework was completed by the students
- BSam painted the fence✓
- CThe letter was opened by Emma
- DThe book was written by the author
Answer: Active voice has the subject doing the action. 'Sam painted the fence' is active - Sam (subject) does the action (painted). The others are passive voice.
Where can the dependent clause go? 'The children played games.' + 'Although it was raining.'
- AOnly at the start of the sentence
- BOnly at the end of the sentence
- CAt the start or at the end of the sentence✓
- DIt cannot be joined to the other sentence
Answer: A dependent clause can come before or after the main clause: 'Although it was raining, the children played games' and 'The children played games although it was raining' are both correct. When it comes first, it is followed by a comma.
Which of these has no verb, so it is not a complete sentence?
- AThey ran to the shops
- BOh dear!✓
- CThe cat sat on the mat
- DI think that we should go
Answer: A complete sentence needs a verb. 'Oh dear!' has no verb at all — it is used on its own for effect. The other choices are complete sentences with a subject and a verb.
Identify the type of the following sentence: 'Do you enjoy reading books?'
- ADeclarative
- BImperative
- CInterrogative✓
- DExclamative
Answer: An interrogative sentence asks a question and ends with a question mark. 'Do you enjoy reading books?' is interrogative. Declarative sentences state facts, imperative sentences give commands, and exclamative sentences express strong emotions.
Identify the type of the following sentence: 'Tidy your room immediately!'
- AExclamative
- BDeclarative
- CImperative✓
- DInterrogative
Answer: An imperative sentence gives a command or instruction. 'Tidy your room immediately!' is imperative. The subject (you) is understood but not stated.
Identify the type of the following sentence: 'What an amazing goal that was!'
- AInterrogative
- BImperative
- CDeclarative
- DExclamative✓
Answer: An exclamative sentence expresses strong emotion and ends with an exclamation mark. 'What an amazing goal that was!' is exclamative. It shows excitement or surprise.
Which pair of sentences should be joined to create a complex sentence?
- A'I went to town.' 'I bought shoes.' (using 'but')
- B'I went to town.' 'I bought shoes.' (using 'because')✓
- C'I went to town.' 'I bought shoes.' (using 'therefore')
- D'I went to town.' 'I bought shoes.' (using 'and')
Answer: To create a complex sentence, use a subordinating conjunction like 'because' which shows the relationship between clauses. 'I went to town because I bought shoes' is complex. Using 'and' or 'but' would create compound sentences, not complex.
Which sentence has correct word order?
- AWent Emma yesterday to the shops
- BYesterday went Emma to the shops
- CTo the shops went Emma yesterday
- DEmma went to the shops yesterday✓
Answer: Standard word order in English is: Subject-Verb-Object-Adverbial. 'Emma went to the shops yesterday' follows this pattern. The others have unusual word order.
Identify the sentence with a misplaced modifier.
- AThe cat sat quietly on the mat
- BWearing red shoes, the school was busy✓
- CWearing red shoes, Emma ran to school
- DThe teacher marked the homework carefully
Answer: A misplaced modifier is unclear about what it describes. 'Wearing red shoes, the school was busy' suggests the school is wearing shoes (wrong!). It should be 'Wearing red shoes, Emma ran to school' to show who is wearing the shoes.