—________ we finish the work before class, Jack?—No, we_________ . We can do it after class.
#74109
A
Must, don’t have to
B
Must, must
C
Can, mustn’t
D
Can, needn’t
推荐题目
A: Listen! Is it Linda singing in the next room? B: No, it __________ be her. She is still in Shanghai.
#76674
A
can’t
B
couldn’t
C
may not
D
might not
Since nobody gave him any help，he ________ have done the research on his own.
#62304
A
can
B
must
C
would
D
need
-- Look at the boy running on the ground. Is it David?-- It _______ be him. I saw him go to the teacher’s office just now.
#77075
A
might
B
could
C
can’t
D
mustn’t
—Look! That man looks like Mr．Brown．—It ________ be him, for I know he is at home．
#74860
A
mustn’t
B
can’t
C
shouldn’t
D
needn’t