1. You must do your homework before you go to school.
Subject + must + V... : Ai đó phải làm gì...
2. How often do you go to your painting club?
How often do/does + S + V? ⇒ Câu hỏi về mức độ làm gì đó.
3. I think he is able to drive very carefully
Be able + to do something: Có thể làm gì
4. Most children are interested in the book.
S + tobe/ tobe not + interested in / like / fancy + V.
5. They do volunteer work because they like doing something useful.
Because: Bởi vì

`86`.You must do your homework before you go to school

`\rightarrow` S + must / mustn't + V : Phải / Không phải làm gì

`87`.How often do you go to your painting club ?

`\rightarrow` Thì HTĐ ( CNV ) : Do / Does + S + V ?

`\rightarrow` How often dùng để hỏi về mức độ thường xuyên

`88`.I think he is able to drive very carefully

`\rightarrow` Be able + to do sth : Có thể làm gì

`89`.Most children are interested in the book

`\rightarrow` Cấu trúc : S + be ( not ) + interested in + V-ing / N

`90`.They do volunteer work because they like doing something useful

`\rightarrow` Because dùng để chỉ nguyên nhân , lý do

`\text{@ TheFox}`