They ______ on the project for almost one month before I joined them, and now we ______ on it as no good results have come out so far.
| A．had been working; are still working |
| B．had worked; were still working |
| C．have been working; have worked |
| D．have worked; are still working |
The hunter______ down and______ to the farmer that he had______ his gun against the tree.
| A．lay, lied, laid | B．lay, laid, laid | C．laid, lay, lied | D．laid, lied, lay |
After two hours of walking, they came to the camp site, ______ .
| A．hungry and tiredly | B．hungrily and tiredly |
| C．hungrily and tired | D．hungry and tired |
The reason______ he was late for class is______ he didn’t catch the first bus.
| A．why; because | B．why; that | C．that; because | D．which; that |
______ you’ve got a chance, you might as well make full use of it.
| A．Now that | B．After | C．Although | D．As soon as |
—I am sure Mary will win the first prize in the final.
—I think so. She______ for it for months.
| A．is preparing | B．was preparing | C．had been preparing | D．has been preparing |