—Whose volleyball is it? —It ________ Carla’s. She doesn’t like volleyball at all.
#75223
A
mustn’t be
B
could be
C
might be
D
can’t be
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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
I am feeling sick now.I ________ so much chocolate.
#63485
A
needn’t have eaten
B
couldn’t have eaten
C
mustn’t have eaten
D
shouldn’ t have eaten