`1.` They didn't use to go to the cinema every Sunday last year

`-` Cấu trúc: S + didn't + use to + V..

`2.` How long is it since you last wrote to him?

`-` Cấu trúc: How long is it since + S + last + V2/ed..?

`3.` This is the best film I have ever seen

`-` Cấu trúc SSN tính từ ngắn với thì HTHT: S + be + the + adj + EST + S + have/ has + VpII

`4.` Did you have a good time at the festival?

`-` enjoy yourself = have a good time

`-` Cấu trúc thì QKĐ: Did + S + V..?

`5.` You aren't allowed to drive a car in this area.

`-` Cấu trúc câu bị động thì HTĐ: S + am/ is/ are + (not) + VpII + (by O)

`-` allow to do sth: cho phép làm gì

They didn't use to go to the cinema every Sunday last year. ( didn't + Vinf )

2 How long is it since you last wrote to him ? ( How long + is it + since + quá khứ đơn )

3 This is the best film that I have ever seen. ( so sánh nhất + hiện tại hoàn thành )

4 Did you have a good time at the festival ? ( enjoy yourself = have a good time )

5 You aren't allowed to drive a car in this area. ( allow + to V )