第一节:单项填空(共15小题,每小题1分,满分15分)。
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
21. If the speed _______________ you drive your car is beyond the limit, you will be punished.
A. by which B. at which C. for which D. of which
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
21. If the speed _______________ you drive your car is beyond the limit, you will be punished.
A. by which B. at which C. for which D. of which