— Who’s singing in the next room? — It ______ be Mary. She ______ New York. 
#75016
A
mustn’t, is in
B
must, has gone to
C
could, has been in
D
can’t, has gone to
推荐题目
– James didn’t ____ last night, did he?– No. He ____. We had changed our plan.
#63144
A
turn away; shouldn’t have come
B
turn up; needn’t have come
C
turn up; didn’t need to come
D
turn away; doesn’t need to come
 My sister met him at the street yesterday afternoon, so he __________ your lecture.
#63076
A
shouldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
couldn’t have attended
—Must I go there right now?—No,you ________.You ________ go there before supper.
#62512
A
mustn't;need
B
needn't;may
C
can't;need
D
won't;can
Would you mind ____ here?  Sorry, I won’t. 
#76083
A
smoke
B
smoking
C
not smoking
D
smokes
That man ________ be Mary’s father, as he is much taller.
#76683
A
can
B
must
C
can’t
D
mustn’t