`-` Câu tường thuật dạng Wh-questions

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

`1.` He asked Lan how she would use English in the future. 

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

`-` you `->` she

`2.` Lan asked me how far it was to the school. 

`-` Thì HTD (is) `->` Thì QKD (was)

`3.` He asked Lan how she went to school.

`-` Thì HTD `->` Thì QKD (V2/V-ed) - lùi thì

`-` you `->` she (đổi ngôi - chủ ngữ)

`4.` He asked Lan why she was so late.

`-` Thì HTD `->` Thì QKD (was/were) - lùi thì

`-` you `->` she (đi với tobe "was")

`5.` Lan asked me how I had gotten to school.

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

`-` you `->` I (đổi ngôi - chủ ngữ)

`6.` He asked Lan why they wouldn't let him in.

`-` Thì TLD (won't) `->` wouldn't + V-inf (lùi thì)

`-` me `->` him (đổi ngôi - tân ngữ)

`7.` He asked Lan who she wanted to talk to.

`-` Thì HTD (do) `->` Thì QKD (V-ed/v2)

`1.` He asked Lan how would she use English in the future.

`-` Lùi thì động từ: will `->` would

`-` Đổi ngôi: you `->` she

`2.` Lan asked me how far it was to the school.

`-` Lùi thì động từ: is `->` was

`3.` He asked Lan how she went to school.

`-` Lùi thì động từ: go `->` went

`-` Đổi ngôi: you `->` she

`4.` He asked Lan why was she so late.

`-` Lùi thì động từ: are `->` was

`-` Đổi ngôi: you `->` she

`5.` Lan asked me how I had gotten to school. 

`-` Thì QKĐ `->` Thì QKHT

`-` Đổi ngôi: you `->` I

`6.` He asked Lan why wouldn't they let him in.

`-` Lùi thì động từ: won't `->` wouldn't

`-` Đổi ngôi: me `->` him

`7.` He asked Lan who she wanted to talk to.

`-` Lùi thì động từ: want to `->` wanted to

`-` Đổi ngôi: you `->` she

`@` Reported speech: Wh-question

 - S + asked (+O)/ wanted to know/ wondered + Wh-words + S + V(lùi thì)