9.The mother asked her daughter where she had been

-Thì QKĐ->QKHT

-DAUGHTER:con gái=>Chuyển You=>she

10.She asked her boyfriend which dress he liked best

-Thì HTĐ=>QKĐ

-Boyfriend:Bạn trai=>You=>He

11.She wanted to know what they were doing

-Thì HTTD=>QKTD

12.He wanted to know If I was going to the cinema

13.The teacher wanted to know who spoke English

-HTĐ=>QKĐ

14.She asked me how I knew that

15.My friend asked me If Caron had talked to Kevin

-Câu tường thuật dạng câu hỏi Wh-questions:S+asked+(O)/wanted to know/wondered/...+wh-words+S+V(lùi thì)

-Câu tường thuật dạng câu hỏi Yes/No questions: S + asked/wanted to know/wondered/... + if/whether + S + V(lùi.thì)

`9` .The mother asked her daughter where had she been

`->` lùi thì : HTHT `->` QKHT 

`->` cấu trúc QKHT : `(+)` S `+` had `+` V3/-ed

`10` .She asked her boyfriend which dress did he like best 

`->` lùi thì : HTĐ `->` QKĐ 

`->` cấu trúc QKĐ : `(+)` wh-word `+` did `+` S `+` V

 `11` .she wanted to know what were they doing 

`->` lùi thì : HTTD `->` QKTD 

`->` cấu trúc QKTD : `(+)` S `+` was/were `+` V-ing

`12` .He wanted to know if you were going to the cinema

`->` lùi thì : HTTD `->` QKTD 

`13` .The teacher wanted to know who spoke English 

`->` lùi thì : HTĐ `->` QKĐ

`14` .She asked me how did I know that

`->` lùi thì : HTĐ `->` QKĐ

`15` .My friend asked me if Caron had talked to Kevin 

`->` lùi thì : HTHT `->` QKHT

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

`=>` trần thuật câu hỏi :

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

`-` S `+` asked `+` O / wanted to know/ wondered `+` wh-word `+` S `+` V(lùi thì)