`1.` Mum wanted to know if Peter had done his homework yet.

`-` Lùi thì: HTHT `->` QKHT

`2.` Mary asked Sue where she was going to spend her holiday that summer.

`-` Lùi thì: TLG `->` TLG trong quá khứ

`-` Đổi ngôi: You `->` She

`-` Đổi trạng từ: This `->` That

`3.` Tom asked me if I knew how long it was from London to Cambridge.

`-` Lùi thì: HTĐ `->` QKĐ

`-` Đổi ngôi: You `->` I

`4.` Cindy asked Carol if he would phone her as soon as he arrived in Oxford.

`-` Lùi thì: Will `->` Would

`-` Đổi ngôi: You `->` He `/` Me `->` Her `/` You `->` He

`5.` Grandma was interested in knowing if the children had played football in the park the day before.

`-` Lùi thì: QKĐ `->` QKHT

`-` Đổi trạng từ: Yesterday `->` The day before

`6.` Father wanted to know how much the ticket for the concert cost.

`-` Lùi thì: HTĐ `->` QKĐ

`------------------`

`-` Cấu trúc câu gián tiếp với dạng câu hỏi có chứa từ hỏi Wh-q:

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

`-` Cấu trúcc câu gián tiếp với dạng câu hỏi nghi vấn Yes/No: 

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

`1,` Mum wanted to know if Peter had done his homework yet.

`2,` Mary asked Sue where she was going to spend her holiday that summer.

`3,` Tom asked me if I knew how long it was from London to Cambridge.

`4,` Cindy asked Carol if he would phone her as soon as he arrived in Oxford.

`5,` Grandma was interested in knowing if the children had played football in the park the day before.

`6,` Father wanted to know how much the ticket for the concert cost.

-------------

`@` Cấu trúc câu tường thuật dạng câu hỏi yes/no:

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

`@` Cấu trúc câu tường thuật dạng câu hỏi nghi vấn:

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

`***` Lùi thì:

QKĐ `->` QKHT

HTĐ -> QKĐ

HTTD -> QKTD

will -> would

`***` Lùi trạng từ thời gian: yesterday -> the day before 

`***` this -> that