I
1, He said that he had already read that book.
2. Tom told his mother that he wanted to buy a gift for our mother
3, Mrs. Brown said that they would rather go out than be at home.
4, Tom said that he didn't know the girl over there.
5, Mother told Nam that he had to clean the room the next day.
II,
1, A. was (lùi thì của am)
2, B. were watching( lùi thì của are watching)
3, D. had been annoying ( lùi thì của have been annoying)
4, D. had eaten( lùi thì QKĐ => QKHT)
5, A. had been having (lùi thì QKTD => QKHTTD)
6, C. would be getting
7, D. could juggle
8, C. had to ( must => had to trong câu tường thuật)
9, A. The lecturer said that there, waste was growing twice as fast as the population.
10, B. to give me ( agree + to- Vo)
11, Peter promised to help Mary with her CV.