It was announced that only when the examination papers were handed in ________to go out of the classroom．
#87791
A
the students would be permitted
B
had the students been permitted
C
would the students be permitted
D
the students had been permitted
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It is vital that we _____ act out at once to protect the environment.
#90531
A
would
B
should
C
will
D
can
—May I tell this to my close friend?—No, you . Never let anybody else know about it.
#87976
A
needn’t
B
shouldn’t
C
mustn’t
D
can’t
---Sorry, sir. I can't answer this question.---Well, you are supposed ______ this part of history.
#86650
A
reading
B
to be reading
C
to read
D
to have read.
It was John who broke the window. Why are you talking to me as if I _______ it?
#86374
A
had done
B
have done
C
did
D
am doing