13 c. He said he had seen Jack at a party a few months ago and he had seemed fine.
Đổi thì: saw -> had seen, seemed -> had seemed
Thay đổi đại từ: I -> he
14 a. He said that New York was bigger than London.
Đổi thì: is -> was
15d. The doctor told me to stay in bed for a few days.
Chuyển câu mệnh lệnh sang câu gián tiếp
16c. I told Jim not to shout.
Chuyển câu mệnh lệnh sang câu gián tiếp
17d. Ann asked me not to tell anyone what happened.
Chuyển câu hỏi sang câu gián tiếp
18b. Ann asked Tom to open the door for her.
Chuyển câu hỏi sang câu gián tiếp
19c. He told us to listen carefully.
Chuyển câu mệnh lệnh sang câu gián tiếp
20c. Ann said not to wait for her if she was late.
Đổi thì: am -> was
21b. The doctor said to eat more fruit and vegetables.
Chuyển câu mệnh lệnh sang câu gián tiếp