“No student,” the headteacher stressed, “_______ go out of the school after ten o’clock at night without my permission.”
#62265
A
must
B
will
C
shall
D
may
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— If you listen to me, you ______ take a good rest at once.— OK, I ______ do so.
#62849
A
should; must
B
shall; will
C
must; would
D
may; can
Mary _______ be in the hospital. I saw her play basketball a minute ago.
#62940
A
mustn’t
B
shouldn’t
C
can’t
D
may not
Mary ______ my letter; otherwise she would have replied before now. 
#63420
A
has received
B
ought to have received
C
couldn’t have received
D
shouldn’t have received