Mark was a student at this university from 1999 to 2003. he studied very hard and was made chairman of the Students’ Union. A.during which time B.for which time C.during whose time D.by that time 答案 A 解析 由题意和所缺词前面的逗号可判定题干是含非限制性定语从句的复合句.先行词是表示一个时间段的短语from 1999 to 2003,题意为:从1999年到2003年马克是这所大 学的学生.在这(4年)期间他学习很用功并被选为学生会主席.所缺词的意思为“在这期间 .故选A项. 【查看更多】
