___ that caused him to serve dinner an hour later than usual.
The secretary worked late into the night, ______ a long speech for the president.
—Tom graduated from college at a very young age. —Oh,he__________have been a very smart boy then.
Michael ______ be a policeman, for he is much too short. A. needn’t B. can’t C should D. may
Why!I have nothing to confess(坦白) . ______ you want me to say?
The road is covered with snow.I can’t understand ______ they insist on going by motorbike.