_____ he realized it was too late to return home.
| A．No sooner it grew dark than |
| B．Hardly did it grow dark when |
| C．It was not until dark that |
| D．It was until dark that |
Filled with anger, he didn’t shout or swear, but just ________ silently at me.
| A．glared | B．saw | C．looked | D．glanced |
You sound ________you have caught a cold.
A. because of B. even though C. so thatD as if
The secretary worked late into the night, ______ a long speech for the president.
| A．to prepare | B．preparing | C．prepared | D．was preparing |
—Tom graduated from college at a very young age.
—Oh,he__________have been a very smart boy then.
| A．could | B．should | C．might | D．must |
Michael ______ be a policeman, for he is much too short.
A. needn’t B. can’t C should D. may