Scientists say it may be five or six years _____ it is possible to test this medicine on human patients.
| A．since | B．after | C．before | D．When |
--Our women athletes achieved great success in the Vancouver Olympic Winter Games.
--Yes. Few could perform ________, I think.
| A．better | B．well | C．best | D．the best |
– When do you think the lecture will begin?
– I’m not sure yet, but the speaker is ________ to be here before nine.
| A．possible | B．probable | C．likely | D．perhaps |
At the Nuclear Security Summit, all the leaders discussed the plan they would like to see
_______ in the near future.
| A．carry out | B．carrying out | C．to carry out | D．carried out |
_______ could be judged from her eyes that she was terribly sorry for what she ________.
| A．As; had done | B．That; did | C．As; did | D．It; had done |
The committee _______ of fifteen members.
| A．consists | B．is consisted | C．formed | D．make up |