Hic lm ơn giúp e vs mng oi 10. " I'll let you borrow the book but you must promise to return it next week". he told us 11. She said to him, "You don't look well today." 12.” I must go to the library tomorrow," she said to us. 13. Nick says, "It's getting late. I have to leave now."

10. He told us he would let us borrow the book but we had to promise to return it the following week.

- will -> would 

- next week -> the following week 

11. She told him he didn't look well that day.

- HTD -> QKD

- this -> that 

12. She told us she had to go to the library the next day.

- must -> had to 

- tomorrow -> the next day 

13. Nick says it's getting late and he has to leave now.

- Động từ tường thuật ở hiện tại nên không lùi thì.

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`@` Câu tường thuật 

`+` Câu tường thuật dạng kể:

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

`+` Câu tường thuật dạng Yes/No-Question:

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

`+` Câu tường thuật dạng Wh-Question:

`-` S + asked O/ wondered/ wanted to know + wh-q + S + V (lùi thì)

`+` Câu tường thuật dạng yêu cầu, mệnh lệnh:

`-` S + told/ asked + O + (not) to V-inf

Lưu ý: Động từ tường thuật ở dạng hiện tại, không lùi thì