They soon ______ doing the same thing day after day, and finally gave up.
| A．got tired of | B．got along with | C．got away from | D．got down to |
____ 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 |
It was last October ____ they finally came back to their hometown.
| A．when | B．that | C．what | D．until |