The police tried to get some clues from the suspect, but he remained______.
| A．silent | B．quiet | C．calm | D．secret |
Bears often hide themselves in places __________ can’t be found by hunters.
| A．in which | B．where | C．that | D．不填 |
There were dirty marks on her trousers _______ she had wiped her hands.
| A．when | B．which | C．where | D．That |
After a lot of questioning, Jack ______ admitted he had taken the car.
| A．frequently | B．eventually | C．absolutely | D．Generously |
My sister met him at the Grand Theater yesterday afternoon, so he ________ your lecture.
| A．couldn’t have attended | B．needn’t have attended |
| C．mustn’t have attended | D．shouldn’t have attended |
Though ________ in a big city, Bill always prefers to sing the songs of country life.
| A．bringing up | B．grown | C．raised | D．Keeping |