问题

What a terrible flood!—-Yes. We must try to prevent the flood ________ the fish in the river.

A:can
B:may
C:must
D:would;

正确答案是：

同类题型

My son seldom hasbreakfast.— It is unhealthy habit. You must ask him to change it.

She promised to ______ at the meeting but she didn’t ______.

here a few minutes earlier, he would have met that famous film star.

Come and see me whenever ______

I’m sorry I ________ my exercise book at home this morning.—It doesn’t matter. Don’t forget ________ it here this afternoon.