`46.` Maria suggested helping the homeless in the neighbourhood.

`-` Suggest V-ing : gợi ý/đề nghị làm gì

`-` Let's + V nguyên thể : hãy làm gì

`47.` He got up early so that he could catch the plane.

`-` Get up ( v ) : thức dậy

`-` S + V + O + so that + S + V + O `=` S + V + O + in order to + V nguyên thể : để làm gì

`48.` After he had played volleyball with his friends, he went home.

`-` After + S + had + V ( ed/PII ) + O, S + V ( ed/PI ) + O : sau khi ...

`->` Diễn tả hành động xảy ra trước hành động nào trong quá khứ,

`49.` Despite the teacher’s clear explanation of the theory, the students found it hard to understand it.

`-` Although/Even though/Though + S + V + O, S + V + O : mặc dù ... nhưng

`=` Despite/In spite of + N/V-ing, S + V + O : mặc dù ... nhưng

`50.` She doesn’t drive as carefully as her brother.

`-` So sánh bằng : S + V + as + adv + as + S

`-` So sánh hơn : S + V + more  + adv + than + S + V