History is full of cases_______dreams have been a pathway to creativity and discovery.
| A．why | B．where | C．when | D．which |
The fog was so heavy this morning that drivers could hardly _______ the things even ten meters away from them.
| A．make out | B．turn out | C．find out | D．figure out |
His computer, which cost him a sum of money several weeks ago, is out of order and wants _______, though it looks very new.
| A．to be repairing | B．repaired | C．repairing | D．to repair |
I’ll go and see you whenever _______.
| A．you are convenient | B．it will be convenient to you |
| C．at your convenience | D．it is convenient for you |
— How about the suggestion Prof. Smith put forward at the meeting last Friday?
— The committee discussed it for hours without a decision _______.
| A．taking | B．to take | C．being taken | D．taken |
The poor man, ______, ran out of the dark cave.
| A．trembling and frightened | B．trembled and frightening |
| C．trembled and frightened | D．trembling and frightening |