Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
| A．which | B．what | C．that | D．when |
I admire David as a poet, I do not like him as a man.
| A．Only if | B．If only | C．As much | D．Much as |
The article suggests that when a person under unusual stress he should be especially careful to have a well-balanced diet.
| A．be | B．is | C．were | D．was |
When I go out in the evening I use the bike the car if I can.
| A．rather than | B．other than | C．better than | D．more than |
Will the colors ______ if the dress is washed?
| A．drop | B．walk | C．pass | D．run |
—Has your father got up?
—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.
| A．must have | B．can’t have | C．would have | D．might have |