15. The police said to him, How did you get into this house? 16. You are putting on a lot of weight Nam told me. 17. She wanted to know: "How long will it take me to get there?" 18. "Did you phone me yesterday?" Tom asked Mary.

`15.` The police asked him how he had gotten into that house.

`-` Câu tường thuật dạng Wh-questions

`-` Cấu trúc: S + asked (sb)/wanted to know/... + Wh-questions + S + V lùi thì

`-` Thì QKD `->` Thì QKHT - had + VpII (lùi thì)

`-` this `->` that 

`-` you `->` he (đổi ngôi - chủ ngữ)

`16.` Nam told me that I was putting on a lot of weight.

`-` Câu tường thuật dạng câu kể

`-` Cấu trúc: S + said/ said to (sb)/told (sb)/... + (that) + S + V lùi thì 

`-` Thì HTTD (am/is/are V-ing) `->` Thì QKTD (was/were V-ing) 

`-` you `->` I (Đổi ngôi - chủ ngữ) 

`17.` She wanted to know how long it would take her to get there.

`-` Thì TLD (will + V-inf) `->` would + V-inf (lùi thì)

`-` me `->` her (đổi ngôi - tân ngữ)

`18.` Tom asked Mary if she had phoned him the day before. 

`-` Thì QKD `->` Thì QKHT

`-` Câu tường thuật dạng Yes or No question

`-` Cấu trúc: S + asked (sb)/wanted to know/... + (That) + S + V lùi thì

`-` yesterday `->` the day before (đổi trạng từ chỉ thời gian)

`-` you `->` she; me `->` him (đổi ngôi)