Even a drop of water ______because it is so important to all the living things.
#76903
A
must waste
B
must be wasted
C
mustn’t waste
D
mustn’t be wasted
推荐题目
Sometimes we have much homework to do, but not often. Anyway, it ______in time.
#76665
A
can finish
B
should finish
C
can be finished
D
should be finished
You          drive your car so fast. It’s dangerous.
#74761
A
wouldn’t
B
shouldn’t
C
couldn’t
D
mightn’t