题目内容：

1、It was necessary that he_____here every Sunday.
A.should come B.came
C.had come D.was coming (A)
2、Today computers are used to_____many different kinds of work.
A.do B.doing
C.having driven D.driving (A)
3、Don't forget the afternoon_____we had a wonderful time.
A.on that B.in that
C.on which D.which (C)

优质解答

1:should 有没有都可以,虚拟语气
2:used to do 在这里是一般的不定式,被用来做,used是被动形式,不是used to do 这个固定短语 ,考察固定短语和被动语态的区分
3：因为那个下午是特指的,所以不能用in而要用on