1. The children are looking forward to going to the circus. (look forward to + Ving: mong chờ = be + excited about doing sth: hào hứng làm việc gì đó)

2. It was such a difficult exercise that we couldn't do it. (S + be + so + Adj that.... → It be such (a/an)

+ Adj + N that....)

3. He wishes he could speak English well. ( be able to = can, present wish: S + wish(es) + S + V(past) + O, dùng để diễn trả một ước muốn trái ngược với hiện tại)

4. They still want to go to school although it is raining hard. (S + V + although + S + V: mặc dù)