Cấu trúc:
`-` "which" thay cho vật đóng vai trò là chủ ngữ hoặc túc từ
`-` "who" thay cho chủ ngữ chỉ người
`-` "whose" chỉ sở hữu + N
`-` "whom" thay cho túc từ chỉ người
`11`. Have you read a book which I lent you last week ?
`12`. The girl who is talking to the lecture has been the best student for 2 years.
`13`. The woman whose car has been stolen is reporting to the police
`14`. The road which joins the two village is very narrow.
`15`. The book Jane Eyre, which I have read, is very interesting.
