四川成人本科学位英语试题精讲：时态

1. Mary ____ in the garden when it began to rain.
A. was walking B. walked C. walking D. had walked
【答案】A it began to rain是一个过去的时间点，因此主句因该用过去进行时。选A。句意为“当开始下雨时， 玛丽正在花园散步。”
2. No one can possibly recall any detail about the meeting. It is at least five years since it ___.
A. had taken place B. was taken place C. took place D. was taking place
【答案】：C。It is …time since 从句（谓语动词用过去时），故选C。It is many years since World War Two was over.自从二次大战结束以来已经很多年了。
3. Dr. Robert went to New York, bought some books and ___.
A. visiting his daughter B. to visit his daughter
C. visit his daughter D. visited his daughter
【答案】D 此句中有三个动词作并列谓语，由and连接，所以前后时态应一致。
4. Let’s go to the cinema tonight. I ____ for you at the gate.
A. wait B. shall wait C. am waiting D. shall have waited
【答案】B 本句中tonight是一个将来时间，时态应用将来时。第一人称将来时可用 shall表示。