1、It was necessary that he_____here every Sunday.

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)