_____ in the regulations that you should not tell other people the password of your e-mail account.
A. What is required
B. What requires
C. It is required
D. It requires
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Look at the terrible situation Iam in now! if only I____ your advice.
A. had followed
B. follow
C. would followed
D. have followed
we didn't know his telephone number, otherwise we____ him.
A. would telephone
B. would have telephoned
C. had telephoned
D. must have telephoned
It's high time that such a practice ____ an end.
A. was put
B. must be put
C. is put
D. should put
But for the traffic jam, I ______ late for the meeting.
A. wouldn't be
B. shouldn’t be
C. would be
D. hadn’t been
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