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
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(2013·辽宁高考)Harry is feeling uncomfortable.He ________ too much at the party last night.
#62380
A
could drink
B
should drink
C
would have drunk
D
must have drunk
You _________ to eat snacks in the classroom.
#74907
A
shouldn’t
B
had better not
C
oughtn’t
D
needn’t