—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
 —________ I swim here?—I’m sorry. Children _______ swim alone here.
#76532
A
Must , can’t
B
May , must
C
Can, mustn’t
D
Can’t can
The boy is old enough to ---------himself.
#76986
A
wear
B
put on
C
dress
D
be in
 ---Must I do the work today? ---No, you _______. You may do it tomorrow.
#78312
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t