`11.` Mary asked Peter what he wanted for lunch that day.

`->` Câu gián tiếp `-` Wh-questions : S + asked + sb + what/where... + S + V(lùi thì)

`->` Lùi thì : HTĐ `->` QKĐ (S Ved)

`-` Today `->` That day

`12.` She asked me if Mr.Brown had sent the potatoes to me the week before.

`->` Câu gián tiếp `-` Yes/No questions : S + asked + sb + if/whether + S + V(lùi thì)

`->` Lùi thì : QKĐ `->` QKHT (S had PII)

`-` Last week `->` The previous week/The week before.

`13.` He told them to open to door.

`14.` She told us not to try to open it then.

`-` Now `->` Then

`->` Mệnh lệnh : S + told/orderes + sb + (not) + to V

`11` Mary asked Peter what he wanted for lunch that day .

`-` Gián tiếp ''Wh_question'' : S + asked + O + Wh_question + S + V(lùi thì) + O ...

`-` you `->` he .

`-` want `->` wanted .

`-` today `->` that day .

`12` She asked me if Mr.Brown had sent the potatoes to me the previous week .

`-` Gián tiếp ''Yes/No'' : S + asked + O + if/whether + S + V(lùi thì) + O ...

`-` sent `->` had sent .

`-` you `->` me .

`-` last week `->` the previous week/the week before .

`13` He told them to open the door .

`-` Gián tiếp sai khiến : S + told/asked + O + to do sth .

`14` She told us not to try open it then .

`-` Gián tiếp sai khiến : S + told/asked + O + to do sth .

`-` now `->` then .