Question

【题目】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

Answer 1

【答案】A

【解析】定语从句的运用。 指时间，而from 1999 to 2003 表示一段时间。介词用during . 相当于He studied very hard during the time from 1999 to 2003. 也可以用when.