`11,` The father asked his son where he had been

- Lùi thì : HTHT -> QKHT

- Đổi ngôi : you -> he

`12,` She asked her darling which shoes he liked best

- Lùi thì : HTĐ -> QKĐ

- Đổi ngôi : you -> he

`13,` She asked what I was doing

- Lùi thì : HTTD -> QKTD

- Đổi ngôi : you -> I

`14,` She asked if I could help her with that assignment

- Lùi thì : can -> could

- Đổi ngôi : you -> I ; me -> her 

- this -> that

`15,` He asked me if I had seen the movie the previous night

- Lùi thì : QKĐ -> QKHT

- Đổi ngôi : you -> I

- Đổi thời gian : last night -> the previous night

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`@` GT - Wh-questions : S + asked (+ O)/wanted to know/wondered + Wh-questions + S + V(lùi thì/đổi ngôi)

`@` GT - Yes/No :  S + asked (+ O)/wanted to know/wondered + if/whether + S + V(lùi thì/đổi ngôi)

11 The father asked his son where he had been.

- you -> he

- Hiện tại hoàn thành -> quá khứ hoàn thành

12 She asked her darling which shoes he liked best.

- you -> he

- Hiện tại đơn -> quá khứ đơn

13 She asked me what I was doing.

- you -> I

- Hiện tại tiếp diễn -> quá khứ tiếp diễn

14 She asked me if I could help her with that assignment.

- you -> I

- me -> her

- can -> could

- this -> that

15 He asked me if I had seen the movie the previous night.

- you -> I

- Quá khứ đơn -> quá khứ hoàn thành

- last night -> the previous night

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* Câu tường thuật với wh-question:

-> S + asked + O + wh + S + V(lùi thì)

* Câu tường thuật dạng yes/no question:

-> S + asked + O + if/whether + S + V(lùi thì)