`1`.Have you ever talked to the man who lives next door ?

`\rightarrow` Who là ĐTQH dùng để thay thế cho DT chỉ người ( `1 , 5` )

`\rightarrow` Who `=` The man

`2`.Those are the keys which open the front door and back door

`\rightarrow` Which là ĐTQH dùng để thay thế cho DT chỉ vật ( `2 , 3` )

`\rightarrow` Which `=` The keys

`3`.I bought a dress which was very expensive

`\rightarrow` Which `=` a dress

`4`.Ms.Lan whose daughter won the first prize in this contest is a good English teacher

`\rightarrow` Whose + N : Dùng để chỉ về vật có sở hữu

`5`.Half of the people who were invited to the wedding didn't come

`\rightarrow` Who `=` Half of the people 

`\text{# TF}`