`wd.`

`1)` Nam loves staying healthy. He eats healthy food every day.

`->` love + V-ing

`->` HTĐ: S + V(es/s/inf)

`2)` Why does he like Maths? Does he like solving problems?

`->` HTĐ: WH + do/does + S + V-inf?

`3)` Who are the main characters in your favourite story?

`->` WH + be + N?

`4)` Which characters do you like in the story?

`->` Which + N + do/does + S + V-inf?

`5)` The ant worked hard to gather food for the winter.

`->` QKĐ: S + V(ed/bqt)

`->` to+V: để làm gì

`6)` How beautiful did the crow sing?

`->` How + adj + did + S + V-inf?

`7)` Snow White cooked meals for the seven dwarfs every day.

`->` QKĐ: S + V(ed/bqt)