1.
used to introduce a question asking about the name or identity of a person or people
2.
used to introduce a relative clause giving information about a person or people
3.
used for adding more information about a person when it is already clear which person you are talking about
4.
used for adding information that shows which person or type of person you are talking aboutIt is more usual to use “that” to introduce this type of relative clause
1.
used to introduce a question asking about the name or identity of a person or people
2.
used to introduce a relative clause giving information about a person or people
3.
used for adding more information about a person when it is already clear which person you are talking about
4.
used for adding information that shows which person or type of person you are talking aboutIt is more usual to use “that” to introduce this type of relative clause