--- Listen! David is talking happily with his mother in the next room. --- It ______ be his mother. She has gone to Yunnan to be a volunteer doctor.
#77427
A
should
B
must
C
can’t
D
mustn’t
推荐题目
–Can I get out at noon?--No. Our school rules state that no student ____ be allowed out at noon, unless he has a request form.
#62565
A
shall
B
will
C
must
D
can
—Is Jack on duty today? —It ______ be him. It is his turn tomorrow.
#76227
A
mustn’t
B
won’t
C
can’t
D
needn’t
— Is Mr. Smith driving here? —I’m not sure. He ______ come by subway.
#74932
A
may
B
shall
C
need
D
must
—Is that man Mr Hu?—That ______ be Mr Hu. Because he has gone to Japan with his wife.
#77278
A
could
B
can’t
C
might
D
must
—Peter doesn’t mind lending you his camera.—He __________. I’ve already borrowed one.
#78022
A
needn’t
B
can’t
C
mustn’t
D
shouldn’t