--Listen! Someone is knocking at the door. Who _____it be?---It_____be Tom. He phoned to visit me this evening.
#77451
A
may;may
B
may;shouldn’t
C
must;can
D
must;may
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－Mom, I’m leaving. －It’s raining. You’d better ________ an umbrella with you.
#75719
A
to take
B
take
C
not take
D
taking
We _______ talk loudly when we see the sign “ Be quiet ”on the right.
#78159
A
must
B
mustn’t
C
need
D
needn’t
— Li Fan won the first prize in the national physics competition. — I ________ he was the winner.
#63178
A
shouldn’t have thought
B
must have thought
C
need have thought
D
could never have thought