Chuyển sang câu bị động theo từ cho sẵn: `1` "Do the aliens eat the same types of foods and drinks like humans ?" the little boy asked `=>` The litter boy asked (whether) `2` My friend asked me "Is it possible for any normal people to fly into the space" `=>` My friend asked me (if) `3` "What might the inhabitants of Mars look like ?" Tom wondered `=>` Tom wondered (what)

`1.` The litter boy asked his teacher whether the aliens ate the same types of foods and drinks like humans

`=>` Cấu trúc: S + asked + O + whether/ if + Clause

`=>` Lùi thì Hiện tại đơn `->` Quá khứ đơn

`2.` My friend asked me if it was possible for any normal people to fly into the space

`=>` Cấu trúc: S + asked + O + whether/ if + Clause

`=>` Lùi thì Hiện tại đơn `->` Quá khứ đơn

`3.` Tom wondered what the inhabitants of Mars might look like

`=>` Cấu trúc: S + wondered + wh-question + Clause