—Whose workbook is this, Tony?—Look! Ann's name is on it! It ______ be hers.
#74539
A
can't
B
must
C
may
D
mustn't
推荐题目
You ________ be hungry already — you had lunch only two hours ago!
#63107
A
wouldn’t
B
can’t
C
mustn’t
D
needn’t
---There is somebody knocking at the door. Who________ it be?---I’m not sure. It ________ be a postman.
#75825
A
may; must
B
will; can
C
can; may
D
may; will
—May I smoke here，please?—I am afraid you ．This is a non-smoking area．
#77581
A
can
B
can’t
C
may
D
may not