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.-I knocked over my coffee cup. It went right over keyboard.
-You shouldn’t put drinks near computer.
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.-I knocked over my coffee cup. It went right over keyboard.
-You shouldn’t put drinks near computer.