．—I did not know you were good friends．
—You___．I have known her since she moved here．You were abroad then．
| A．may have | B．needn’t have | C．couldn’t have | D．must have |
. You and I could hardly understand what he said, ________ ?
| A．could we | B．could you | C．couldn’t we | D．couldn’t you |
. ________ the case is settled out of court, it can often take years before it comes to trial.
| A．Except that | B．Unless | C．Until | D．But for E) Despite the fact that |
. Put on your rain()coat ________ it rains.
| A．because | B．as | C．lest | D．in case E) in condition |
.________ gas leaks and similar accidents should occur, some responsible persons should regularly inspect all the laboratories.
| A．Unless | B．In case | C．Provided | D．Until |
. ________ in one leg, he never had a chance to get a job.
| A．Weak and lame | B．He was weak and lame |
| C．Though weak and lame | D．Weak and lame as he was |