`1.` Phong asked Peter if he enjoyed reading books.

`-` Câu tường thuật : S + asked + O + if + S + V(lùi thì)

`-` Lùi thì : HTD `->` QKD

`2.` Hoa asked Lan if she liked sports.

`-` Lùi thì : HTD `->` QKD

`3.` Ba asked Tuan if he could drive his bicycle to school.

`-` Lùi thì : can `->` could ( dạng QK )

`4.` Nga asked Hoa if she might use her dictionary for a moment.

`-` Lùi thì : may `->` might 

`5.` Tuan asked Ba if he was fond of watching TV.

`-` Lùi thì : HTD `->` QKD

`6.` She asked me if I had been to Paris.

`-` Lùi thì : HTHT `->` QKHT