－May we start the meeting now?－No, we________ . We__________ to start until the manager comes.
#76883
A
mustn’t; are allowed
B
don’t have to; are supposed
C
needn’t; aren’t allowed
D
can’t; aren’t supposed
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—Excuse me, Mr. Brown. ______ you speak Chinese?—Yes, butt only a little.
#63048
A
Shall
B
Must
C
May
D
Can
You _______be hungry already—you had lunch only two hours ago.
#63104
A
can”t
B
wouldn”t
C
mustn’t
D
needn”t
So many people violate traffic regulations that we ____ put too much emphasis on the importance of traffic safety.
#62634
A
must not
B
should not
C
need not
D
cannot
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