The teacher asked the boy when he invented those things.

The alien asked me how many hands I had

 1.The teacher asked the boy :"when đi you invent these things?"

=>The teacher asked the boy when did you invent these things?

2.The alien asked me:"How many hands do you have? "

=> The alien asked me how many hands I have?"

1.The teacher asked the boy :"when did you invent these things?"

=>The teacher asked the boy when he had invented those things.

2.The alien asked me:"How many hands do you have? "

=> The alien asked me how many hands I had.

"Is learning Vietnamese being interested in?" Huy asked Liz and she answered"Yes, I am'.

-> She asked her mom if there were any oranges in the fridge.

She asked her mom if there were any oranges in the fridge

1.He asked me what my opinion was,if i thought they were telling lied.

2.He asked me who had told me that Tom had be there the day before.

Mk cx hk chắc lắm:))

1. He asked me how I would react If I saw an alien.

"How will you react if you see an alien?"He asked me

2. The teacher asked me which planet was most suitable for human life.

"Which planet is most suitable for human life?"The teacher asked me

3. My friend asked me when humans had first landed on the moon.

"When did humans first land on the moon?"My friend asked me

4. She asked me what the difference between a planet and a star was.

'What is the difference between a planet and a star?"She asked me 

5. They asked If there was water on Mars

"Is there water on Mars?" They asked

 1 Nancy asked Mary what projects she was working on.

2 Linda asked the speaker what he/she often did to protect the environment.

3 John asked Mike if he had got any new tasks on "ways to learn" for him.

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Câu gián tiếp

1, Lùi thì

2, Đổi trạng ngữ

3, Các dạng

a, Dạng câu kể: S+said/told/said to O+that+S(đổi ngôi nếu cần)+V(lùi thì)+.................

b, Dạng yes/no: S+asked/wanted to know/wondered+if/whether+S(đổi ngôi nếu cần)+V(lùi thì)+............

c, Dạng Wh-questions: S+asked/wanted to know/wondered+wh-question+S(đổi ngôi nếu cần)+V(lùi thì)+............

d, Dạng mệnh lệnh: S+told/asked+O+to V+..........

4, Các trường hợp không lùi thì

-Nếu câu gián tiếp nói về sự thật hiển nhiên, chân lý

-Khi tường thuật câu điều kiện loại 2, loại 3

-Khi tường thuật hành động đang xảy ra thì hành động khác xen vào(quá khứ tiếp diễn kết hợp quá khứ đơn)

1. Nancy asked Mary what projects she was working on

2. Linda asked the speaker what he/she often did Linda asked the speaker

3. John asked Mike if he had got any new tasks on "ways to learn" for him

13, She asked Tuan where he would study if he got that scholarship.

14. Ly said thta their new teacher came from Hai Phong.

15. Kate asked me if I wanted somebody to feed my cat while I was away.

Minh's sister asked him if his room was cleaned then.

Minh’s sister asked him if his room was cleaned.