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Interactive Grammar: Relative Clauses

Use who, which, that, whose, where, and when to add information about people, things, and places.

Grammar Explanation · Authentic Examples · Practice Exercises

Lesson progressNot started
Duration
~75 min
Exercises
50
Level
Intermediate

Overview

Use who, which, that, whose, where, and when to add information about people, things, and places.

Relative Pronouns

  • whoPeople: the woman who called
  • whichThings/animals: the car which broke down
  • thatPeople or things (defining): the book that I read
  • whosePossession: the boy whose bag was stolen
  • wherePlaces: the city where I grew up

Defining vs Non-Defining

  • DefiningNo commas — essential info: the man who stole the car
  • Non-definingCommas — extra info: My sister, who lives in Rome, called.
  • That is only used in defining clauses

Common Mistakes

  • ❌ The man which I met → ✅ The man who I met
  • ❌ The house who I bought → ✅ The house that/which
  • ❌ My friend, that lives in Paris → ✅ who lives

When to use

Describing People

The teacher who helped me was amazing.

Describing Places

This is the café where we first met.

Describing Things

I found the keys that I lost.

Showing Possession

The student whose essay won is here.

Multiple Choice Quiz

Choose the correct relative pronoun

Multiple Choice15 questions
1The woman called you is waiting outside.
2This is the car broke down on the motorway.
3The book you lent me was really interesting.
4The student essay won the prize is very talented.
5Paris is the city I grew up.
6I remember the day we first met.
7She is the teacher helped me most.
8The company he works for is very successful.
9That's the house I was born.
10The man bag I found returned it.
11The film we saw last night was brilliant.
12Do you know anyone can help me?
13The year she was born was 1995.
14The person phone is ringing should answer it.
15The restaurant we had dinner is closing.

Fill in the Blanks

Complete each sentence with the correct relative pronoun

Fill in the Blanks15 questions
1The man(who/which)lives next door is very friendly.
2This is the phone(who/which)I bought last week.
3She's the girl(whose)father is a famous chef.
4That's the school(where)my children study.
5I remember the summer(when)we went to the coast every day.
6The scientist(who)discovered penicillin was Fleming.
7The car(that/which)I drive belongs to my parents.
8He's the colleague(whose)work I always admire.
9Rome is a city(where)history is everywhere.
10The moment(when)I saw her, I knew we'd be friends.
11The people(who)live here are very welcoming.
12I found a wallet(that/which)was lying on the bench.
13The student(whose)project was selected will present it.
14Is this the café(where)you had your first date?
15The author(who/that)wrote this book is from Ireland.

Combine the Sentences

Join the two sentences into one using a relative clause

Transform10 questions

1I met a woman. She works at the hospital. → → Relative clause (who)

2I read a book. It changed my life. → → Relative clause (that)

3She has a brother. His car was stolen. → → Relative clause (whose)

4We visited a café. They serve amazing coffee there. → → Relative clause (where)

5He found the wallet. I lost it. → → Relative clause (which)

6I remember the summer. We camped by the lake then. → → Relative clause (when)

7She talked to the man. His daughter was injured. → → Relative clause (whose)

8This is the hotel. We stayed there last year. → → Relative clause (where)

9He's the teacher. He won the award. → → Relative clause (who)

10I lent her the book. It's on the shelf. → → Relative clause (which)

Fix the Errors

Each relative clause has a mistake. Rewrite the sentence correctly.

Error Fix10 questions

1The man which called me is my uncle.

2This is the car who broke down.

3She's the teacher which helped me.

4That's the house which I was born.

5I know a boy which sister is a doctor.

6My sister, that lives in Rome, is a chef.

7The year which she was born was 1990.

8He's the person who's phone was stolen.

9The café where I like it is on the high street.

10This is the book that it changed my life.

Frequently Asked Questions

What does this lesson on clauses cover?

Use who, which, that, whose, where, and when to add information about people, things, and places.

Which CEFR level is this lesson designed for?

This lesson is designed for Intermediate (B1) learners and forms part of the Clauses section on Grammartier.

What is the best approach for studying this grammar topic?

Start with the definition, then study the examples carefully to understand how the pattern works in context. Practise identifying the structure in authentic sentences before producing your own — this recognition-first approach builds a strong foundation for accurate, confident use.

Your Grammar Learning Path

Follow the CEFR progression for this topic cluster.

  1. A2
    Time Clauses
  2. A2
    Clauses
  3. B1
    Relative ClausesYou are here
  4. B1
    That Clauses
  5. B2
    Advanced Relative Clauses
  6. B2
    Participle Clauses
  7. B2
    Reduced Relative Clauses

Before You Start

Make sure you're comfortable with these topics first.

Continue Your Grammar Journey

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