问题

Who do you think will get the first prize? —Mary, of courseShe ________ for the competition for months

A:is preparing
B:was preparing
C:has been preparing
D:had been preparing

正确答案是：

同类题型

Johnny, you __ play with the knife, you __ hurt yourself.

They want a house, we would rather live in a flat

Let me _____it _____ you, sir!— Sure, go ahead.

The lack of an ________ education denies them a chance to get a good job. [ ]

．The education department focuses on the__________education system，instead of only individual schools．