1 学位英语历年题目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 wen
