Câu tường thuật `-` Dạng câu hỏi Yes / No question :

`-` S + asked + O + if / wether / wondered / wanted to know + S + V ( lùit thì ) + O.

`1.` John asked Nhi if Ha Long Bay was in northern Vietnam .

`-` Lùi thì : HTĐ `->` QKĐ .

`2.` Linh asked me if I would come to her house for dinner .

`-` Lùi thì : HTĐ `->` QKĐ .

`-` Đổi ngôi : You `->` I.

`3.` The teacher asked Nam if Mount Everest was the highest mountain in the world .

`-` Lùi thì : HTĐ `->` QKĐ .

`4.` The young man asked Mary if she saw what he saw .

 `-` Lùi thì : HTĐ `->` QKĐ .

`-` Đổi ngôi : You `->` she , I `->` he .

`5.` Hoa asked me if I could speak more slowly .

`1.` if Ha Long Bay was in northern Vietnam

`-` lùi thì : HTĐ `->` QKĐ

`2.` if I would come to her house for dinner

`-` will `->` would

3.` If Mount Everest was the highest mountain in the world

`-` lùi thì: HTĐ `->` QKĐ

`4.` if she saw what he saw

`-` lùi thì: HTĐ `->` QKĐ

`5.` if I could speak more slowly

`___________________`

`***` Câu gián tiếp dạng Yes/No question:

S + asked/wondered/wanted to know + (O) + If/whether + S + V(lùi thì)