Giúp mình câu này với cảm ơn nhiều ạaa

`1.` I asked Mary when she would learn to play the piano.

`2.` Mr. Pike asked me who I was writing to.

`3.` My parents asked me what I was doing then.

`4.` The pupils asked their teacher how to spell Manchester.

`5.` Ann asked him where her dolls were.

`6.` They asked me what time I got up.

`7.` He asked her when she left that place.

`8.` We asked what time she arrived.

`9.` Mr. Smith asked me where I was going on my vacation.

`@@@` 

Dạng câu hỏi tường thuật WH-word

`-` S + asked + (O) + Wh-word + S + V (lùi thì)

`@` Lùi thì :

`-` HTĐ `->` QKĐ

`-` HTTD `->` QKTD

`-` HTHT/QKĐ `->` QKHT

`-` HTHTTD `->` QKHTTD

`-` QKTD `->` QKHTTD

`-` Will `→` Would 

`-` Can `→` Could

`-` Must/Have to `→` Had to

`-` May `→` Might