—Is Jack on duty today? —It_____ be him. It’s his turn tomorrow.
#62168
A
mustn’t
B
won’t
C
can’t
D
needn’t
推荐题目
—Could you please have a walk with me?—Sorry, I _______. I have something important to do now.
#74182
A
mustn’t
B
needn’t
C
can’t
D
may not
—I can’t stop smoking, doctor. — For your health, I’m afraid you ______.
#77932
A
may
B
can
C
have to
D
need
---My house is very near a busy street. ---It ________ be very quiet.
#74966
A
can
B
must
C
mustn't
D
can’t
—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