One of our rules is that every student _______ wear school uniform while at school.
#87030
A
might
B
could
C
shall
D
will
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He pushed the door again and again, but it ___ open.
#89064
A
may not
B
can't
C
didn’t
D
wouldn't
I’m afraid Mr. Harding ______see you now. He’s busy.
#87913
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t