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
____ you are a high school student, you are responsible for what you do.Which of the following is WRONG?
| A．Now that | B．Because |
| C．Since | D．Despite |
Dust and dirt soon ____ if a house is not cleaned regularly.
| A．accumulate | B．abandon |
| C．access | D．assess |
I ____ that he get some professional advice.
| A．recommend | B．recognize |
| C．acknowledge | D．admit |
The shortage of affordable housing is not ____ a Beijing problem
| A．delicately | B．sufficiently |
| C．exclusively | D．effectively |
Another car crashed into mine just as I was ___ away from the parking place .
| A．drifting | B．running |
| C．walking | D．pulling |