—Look! Is that Mr. Green?—It be Mr. Green. He has gone to Shanghai.
#75596
A
must
B
can
C
mustn’t
D
can’t
推荐题目
According to common practice, the president _________ hold office for five years.
#62922
A
must
B
shall
C
need
D
will
You ________ in person; a telephone would have been enough.
#62344
A
couldn't have come
B
needn't have come
C
shouldn't have come
D
mustn't have come