Look! There’s no light on—Sara _____be at home.
#87883
A
can’t
B
mustn’t
C
needn’t
D
shouldn’t
推荐题目
I can’t find the recorder in the room. It ________ by someone.
#87740
A
may take
B
may have been taken away
C
must have taken away
D
needn’t have been taken away
He insisted that his plan _______ carried out at once. 
#87128
A
would be
B
could be
C
was
D
should be
 It was Mr. Zhang that helped us out of the trouble. Without his help, we ______ it so easily.
#86786
A
can’t manage
B
mustn’t have managed
C
couldn’t have managed
D
couldn’t manage