Đề bài:Khoanh tròn dạng đúng của động từ ở thì quá khứ đơn hoặc quá khứ hoàn thành sao cho phù hợp với ngữ cảnh câu.
1.The robbers left / had left the bank when the policemen finally arrived / had arrived.
2.When the rain startes / had started,the Atkinsons finished / had finished planting trees.
3.By the time Rebecca went / had gone into the store,she got / had got soaked.
4.Darcey saw / had seen this castle before she againlasst Sunday.
5.Mr.Palmer didn't speak / hadn't spoken any Chinese before he moved / had moved to Peking.
6.Sonny got / had got fainted by the time the ambulance reached / had reached the hospital.
7.When my morther brought / had brought me an apple,I finished / had finished my homewook.
8.Mrs.Wilkinson refused / had refused to drive the car because she had / had had a terrible accident on the hightway about a year ago.
9.I didn't think / hadn't thought of having a new house before I saw / had seen that ad on TV.
10.My uncle didn't try / hadn't tried Italia food before went / had gone to that restaurant.