Grammar: Relative Clauses Worksheet (B2)
A printable B2 grammar worksheet on relative clauses: which pronoun to use, when the commas change the meaning, when the pronoun can be left out, and combining short sentences into one. Five tasks, a full answer key and teacher's notes.
About this worksheet
Relative clauses are what let a writer put two ideas in one sentence instead of two, which is most of the difference between B1 writing and B2 writing. The grammar is not hard; the comma rule carries real meaning and is worth the time.
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Grammar: Relative Clauses · Level B2 · About 50 minutes
Name: ______________________________ Date: ______________
Defining, non-defining, and the commas that separate them
A defining clause says which one you mean, and the sentence loses its sense without it. No commas: The teacher who taught me French has retired. (Which teacher? That one.) Use who for people, which for things, that for either, whose for possession, where for places and when for times.
A non-defining clause adds extra information about something already identified. Commas, always: Mrs Perera, who taught me French, has retired. We already know who she is; the clause is an aside. That is not used here, and the commas are not optional.
The commas change the meaning. The students who failed must retake the paper means only some failed. The students, who failed, must retake the paper means all of them did. Read both aloud and the pause does the same work as the commas.
You can leave the pronoun out when it is the object of a defining clause: The book (which) I read last week. You cannot leave it out when it is the subject - The man who lives next door keeps its who - and never in a non-defining clause.
Which can also refer to a whole clause, in writing: He arrived two hours late, which annoyed everybody. Here which means the whole of what went before, not one noun.
Task 1. Choose the pronoun
Write who, which, that, whose, where or when. Where more than one is possible, write both.
Example: That is the shop which / that sells the best bread.
- The woman ________ car was stolen has gone to the police.
- This is the village ________ my mother grew up.
- Is that the man ________ you were telling me about?
- 2019 was the year ________ the factory closed.
- My neighbour, ________ works nights, sleeps until two.
- He failed the examination, ________ surprised nobody.
Task 2. Commas or no commas?
Add commas where they are needed. Two sentences need none. Then say what each sentence means.
Example: My sister who lives in Galle is a nurse. → My sister, who lives in Galle, is a nurse. (I have one sister.) Without commas it would mean I have more than one.
- The bus which leaves at six is always full. ____________
- Our head teacher who has been here for twenty years is retiring. ____________
- The parcel that arrived this morning was not for us. ____________
- Kandy which is in the hills is much cooler than Colombo. ____________
- The people who complained have been given their money back. ____________
Task 3. Make one sentence
Join each pair using a relative clause. Use commas where the extra information is not needed to identify anything.
Example: I met a woman. She had lived in five countries. → I met a woman who had lived in five countries.
- The film was three hours long. We saw it on Friday. → ____________________
- My uncle has sold his shop. He is seventy next month. → ____________________
- I still use the dictionary. My father gave it to me. → ____________________
- The hotel was fully booked. We wanted to stay there. → ____________________
- She missed the train. This meant she missed the interview. → ____________________
Task 4. Find and correct the mistake
Each sentence has one mistake. Cross it out and write the correction.
Example: My brother, ~~that~~ who lives in Jaffna, is a doctor.
- The man which repaired my laptop was very quick. ____________
- The house where I was born in has been pulled down. ____________
- Students who they arrive late will not be admitted. ____________
- Ella, that is famous for its views, is two hours away. ____________
- This is the book I told you about it. ____________
- My best friend who I have known since we were six is getting married. ____________
Task 5. Your turn
Write six sentences about people and places you know, using six different relative pronouns. At least two must be non-defining, with commas, and at least one must use which to refer to a whole clause.
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For the teacher: answer key
| Task | Answers |
|---|---|
| Task 1 | 1 whose 2 where 3 who / that (or no pronoun: the man you were telling me about) 4 when 5 who (non-defining, so not that) 6 which |
| Task 2 | 1 No commas: it says which bus. 2 Commas: Our head teacher, who has been here for twenty years, is retiring - a school has one head teacher. 3 No commas: it says which parcel. 4 Commas: Kandy, which is in the hills, ... - there is only one Kandy. 5 No commas: only the people who complained, not everyone. |
| Task 3 | Suggested answers. 1 The film (which/that) we saw on Friday was three hours long. 2 My uncle, who is seventy next month, has sold his shop. 3 I still use the dictionary (which/that) my father gave me. 4 The hotel (which/that) we wanted to stay at was fully booked. 5 She missed the train, which meant she missed the interview. |
| Task 4 | 1 who/that repaired my laptop 2 the house where I was born (or which I was born in) - not both 3 Students who arrive late (no they) 4 Ella, which is famous ... (that is not used in non-defining clauses) 5 the book I told you about (no it) 6 My best friend, who I have known since we were six, is getting married (commas: you have one best friend) |
| Task 5 | Answers will vary. Check three things: no that in a non-defining clause, commas at both ends or neither, and no repeated object - the book which I read it is the commonest error at this level. |
Teacher's notes
- Timing: Tasks 1 to 4 take about 35 minutes; Task 5 about 15, or set it as homework.
- Teach the commas as meaning, not as punctuation. Put My sister who lives in Galle and My sister, who lives in Galle on the board and ask how many sisters the writer has. Learners who see that the commas change the facts stop treating them as decoration.
- Read the pairs aloud. A non-defining clause has a pause and a drop in pitch at each comma; a defining clause runs straight through. Hearing it is faster than any rule.
- The repeated object is the error to hunt. The book which I read it, the man who I spoke to him: most learners' first languages allow this, so it survives long after the pronouns are secure.
- Task 3 is where B2 writing is built. Ask for the joined sentence aloud first, then written. Learners who can join two sentences aloud write noticeably longer, better-linked paragraphs within a few weeks.
- Extension: learners take a paragraph from their own recent writing and combine every pair of short sentences that share a noun. They usually find three or four, and the paragraph improves visibly.
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About this worksheet
Written by RCF English to the RCF English international standard: levelled by the CEFR, original throughout, and suitable for classrooms in any country. Last reviewed 22 September 2026.