Clinical evidence began to__________, suggesting that the new drugs had a wider range of useful activities than had been predicted from experiments in animals.
| A．operate | B．straighter | C．approve | D．accumulate |
I preferred _______the long jump rather than ________ in the relay race in the school sports games.
| A．to choose; to run | B．choosing; to run | C．choosing; run | D．to choose; run |
--- Are you satisfied with what he has done?
--- Not at all. It can’t be ________.
| A．any worse | B．so bad | C．much better | D．the worst |
Last week the students did the experiment in order to_______ if iron rusts in dry air．
| A．look for | B．look at | C．find out | D．find |
--- Did you enjoy the party last weekend at Peter’s home?
--- Oh, sure. It has been years _______ I last enjoyed myself like that.
| A．since | B．before | C．until | D．when |
Mike failed to finish his homework on time, so he tried to avoid _______ his teacher.
| A．meet | B．to meet | C．to meeting | D．meeting |