问题

11. Madonna ______ a straight–A student, but it was dancing that she was really crazy about.

A:must be
B:could be
C:must have been
D:could have been

正确答案是：

同类题型

The little time I had outside of school was _______ with work.

China is becoming stronger and stronger and _________ an important role on the international stage in recent years.

37. No one has come up with a better explanation of why dinosaurs ______.

They have something common.Both of them are good dancing.

There were many talented actors out there just waiting _____. [ ]