`1.` I asked him if he had seen her at the party the previous night.

`-` Nghi vấn : S + asked/ wanted to know/ wondered + if/whether + S + V ( đổi ngôi / lùi thì )

`-` QKĐ `->` QKHT

`-` last `->` the previous

`2.` She asked me where I was going to spend my holiday that summer.

`-` Nghi vấn : S + asked/ wanted to know/ wondered + Wh + S + V ( đổi ngôi / lùi thì )

`-` this `->` that

`-` TLG `->` TLQK

`3.` He can speak English worse than me.

`-` So sánh hơn ( tính từ ngắn ) : S1 + V + adj-er + than + S2

`+` He can't speak English as well as me.

`-` So sánh không ngang bằng :  S2 + V + not + so/as + adj + as + S1

`4.` She asked Than if she told him about her school report

`-` Nghi vấn : S + asked/ wanted to know/ wondered + if/whether + S + V ( đổi ngôi / lùi thì )

`-` HTĐ `->` QKĐ

`-` your `->` her