The young trees should ______well as often as possible.
#75249
A
be water
B
watered
C
watering
D
be watered
推荐题目
—May I swim here?  — No, you _______.  It is dangerous.
#62690
A
won’t
B
needn’t
C
mustn’t
D
don’t have to
—Is that Lucy’s cousin, Anna?—No, it ______ her. She has gone to Paris.
#76831
A
mustn’t be
B
might be
C
can’t be
D
could be
Some teenagers would rather _____ than _______ in their spare time. 
#75991
A
play computer games, doing exercise
B
to play computer games, to do exercise
C
play computer games, do exercise
D
playing computer games, do exercise