`11.` They asked what they were talking about.

`-` Lùi thì: HTTD `->` QKTD

`12.` Bella said she had just sent a letter to Hoa.

`-` Lùi thì: HTHT `->` QKHT

`13.` Alex asked if I liked listening to music.

`-` Lùi thì: HTĐ `->` QKĐ

`14.` My brother asked me which bike I liked best.

`-` Lùi thì: HTĐ `->` QKĐ

`15.` Jenny asked her why she didn't help Jack.

`-` Lùi thì: HTĐ `->` QKĐ

`16.` She asked me if she could pick me up at `8 p.m.`

`-` Lùi thì: can `->` could

`17.` Nhung asked where the ideal place to go camping was.

`-` Lùi thì: HTĐ `->` QKĐ

`18.` Tom told Hank not to tell anyone his salary.

`->` tell sb (not) to do sth: yêu cầu ai (không) làm gì

`19.` They said they would call me the next day.

`-` Lùi thì: will `->` would

`-` ĐTCTG: tomorrow `->` the next day

`20.` The doctor asked Linda when her daughter had been born.

`-` Lùi thì: QKĐ `->` QKHT

`-----------`

`@`Câu tường thuật:

`-` Wh question: S + asked sb + wh question + S + V (lùi thì)

`-` Yes/no question: S + asked sb + if/whether + S + V (lùi thì)

`-` Kể: S + said (that) + S + V (lùi thì)

Câu tường thuật - dạng câu kể 

S + said to / told + O + (that) + S + V (lùi thì)

S + said + (that) + S + V (lùi thì)

Câu tường thuật - dạng Yes/No-questions 

S + asked / wanted to know / wondered + (O) +if/whether + S+ V (lùi thì)

Câu tường thuật - dạng Wh-questions 

S + asked / wanted to know / wondered + (O) +WH + S+ V (lùi thì)

Câu tường thuật - dạng câu yêu cầu, mệnh lệnh

S + told / asked / said to + (O) + to V / not to V 

S + say(s) / tell(s) + that + S+ V (k lùi thì)

--------------------------------------------------

HTTD → QKTD

HTHT → QKHT 

HTD → QKD 

can → could 

will → would 

tomorrow → the next day 

QKD → QKHT

--------------------------------------------------

11. She asked me what they were talking about.

12. Bella said that she had just sent a letter to Hoa.

13. Alex asked me if I liked listening to music.

14. My brother asked me which bike I liked best.

15. Jenny asked her why she didn’t help Jack.

16. She asked me if she could pick up at 8 p.m.

17. Nhung asked where the ideal place to go camping was.

18. Tom told Hank not to tell anyone her salary.

19. She said that she would call me the next day.

20. The doctor asked Linda when her daughter had been born.

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