I. 单项选择：(共50题；满分50分；每小题1分)
从A、B、C、D四个选项中，选出可以填入空白处的最佳答案，并在答题卡上将该项涂黑。
1. --- I serve three meals every day and do almost everything for him, but he still lets me down.
--- I’m afraid that’s ______ you are mistaken.
A.how B. where C. what D. in which
None of them had expected that the middle－aged engineer died his design uncompleted.
| A．with | B．from | C．without | D．through |
—It was careless of you to have left the house without turning off the gas.
—My god! .
| A．So were you | B．So was I | C．So did I | D．So I did |
It was not she took off her dark glasses I realized she was a famous film star.
| A．when;that | B．until;that |
| C．until;when | D．when;then |
Please ask the lawyer what his would be to take the case to court.
| A．wage | B．income | C．fee | D．welfare |
It is said that some government leaders their position to get illegal profits for themselves.
| A．occupy | B．take | C．abuse | D．hold |