21.—Do you like the latest movie Lost in Thailand？
A. Of course B. Not really C. I depends D. That’s right
【答案】B
【解析】
22.One morning I was sitting at my desk when a policeman__________ at the door.
A. knocked B. was knocking C. had knocked D. knocks
【答案】A
【解析】我正坐在桌旁， 这时一个警察来敲门。本句是be doing…when…。
23.He had a lot of friends, but none of_________ could lend him any money.
A. whom B. them C. which D. who
【答案】B
【解析】but 是连词，所以不能选连词。A,C,D排除，选B。
