Medicine should be placed where it is not ______ to children.
| A．accessible | B．available | C．acceptable | D．noticeable |
The news has spread all over the country ____ the spaceship succeeded in returning to the earth.
| A．which | B．that | C．whether | D．what |
____ he works hard, I don’t mind when he finishes the experiment.
| A．As soon as | B．Even though |
| C．So long as | D．So far as |
____, he does not know the answer.
| A．As he is a teacher | B．As he is teacher |
| C．A teacher as he is | D．Teacher as he is |
We were ____ to go out for a camp ____ it began to rain.
| A．hardly; than | B．around; as |
| C．about; when | D．nearly; while |
____ several times, the young scientist still kept on doing his experiments.
| A．Having failed | B．Having been failed | C．Failed | D．To fail |