Look at these examples to see how defining relative clauses are used.
Are you the one who sent me the email?
The phone which has the most features is also the most expensive.
This is the video that I wanted to show you.
The person they spoke to was really helpful.
Try this exercise to test your grammar.
Read the explanation to learn more.
Grammar explanation
Relative clauses give us information about the person or thing mentioned.
Defining relative clauses give us essential information – information that tells us who or what we are talking about.
The woman who lives next door works in a bank.
These are the flights that have been cancelled.
We usually use a relative pronoun or adverb to start a defining relative clause: who, which, that, when, where or whose.
who/that
We can use who or that to talk about people. that is more common and a bit more informal.
She's the woman who cuts my hair.
He's the man that I met at the conference.
which/that
We can use which or that to talk about things. that is more common and a bit more informal.
There was a one-year guarantee which came with the TV.
The laptop that I bought last week has started making a strange noise!
Other pronouns
when can refer to a time.
Summer is the season when I'm happiest.
where can refer to a place.
That's the stadium where Real Madrid play.
whose refers to the person that something belongs to.
He's a musician whose albums have sold millions.
Omitting the relative pronoun
Sometimes we can leave out the relative pronoun. For example, we can usually leave out who, which or that if it is followed by a subject.
The assistant [that] we met was really kind.
(we = subject, can omit that)
We can't usually leave it out if it is followed by a verb.
The assistant that helped us was really kind.
(helped = verb, can't omit that)
Do this exercise to test your grammar again.
Hi Hieu Nguyen,
If you only look at the structure of the sentence, then yes - "the place" can replace "the stadium". But language use is not only a matter of structure/grammar. Words have individual characteristics too, including how they combine with other words in common phrases, and these cannot be described with grammatical rules. For whatever reason, it has become relatively common to omit "where" after "the place", but not after "stadium" or other words denoting places. It's a matter of vocabulary usage too, not only grammar.
Yes, it is acceptable to omit relative pronouns in formal writing. However, in more precise writing (e.g. technical reports or legal writing, or when you just want to express yourself clearly), it may be better not to omit them, to ensure maximum clarity of meaning. (Precise writing is not always formal writing.)
I hope that helps.
Jonathan
The LearnEnglish Team
Hello again Mr. Jonathan R,
Thank you for your detailed explanation. I get it now.
Hope you have a good day, sir.
Dear Kirk, first of all, my class and I love your name and we think you’re very slayyyy! But your exercises aren’t done correctly, because it only shows a certain number of questions to different people. I got 10 questions out of 16, my friend got 8 questions out of 16 and my other classmate got 13 questions out of 16. Please fix your error.
Thank you for your attention, xoxo 💋
Hello chicavampiro,
I'm glad to hear it!
Regarding your question, in each exercise, you have to choose 16 options (this is what '16 items remaining' means), so the questions can have one, two, or three correct options.
For example, in Grammar test 1, for the first sentence, 'who' and 'that' are both correct; for the second sentence, 'who', 'that' and '–' are correct. You have to tick the boxes for all of these answers.
You can also see the correct answers: after you press the 'Finish' button, press the 'Show answers' button to see them.
Hope this helps you and your friends and classmates.
Best wishes,
Kirk
The LearnEnglish Team
Hi haovivu128,
You did a good job :) The relative pronouns and relative clauses are correct. But I do have a few other corrections:
I hope that helps.
Jonathan
The LearnEnglish Team
Hello BobMux,
It's not clear in this case whether the farmers use the substance or the tank. Usually the context will make it clear, but sometimes you have to ask for more information to know for sure.
All the best,
Kirk
The LearnEnglish Team