问题补充：
With the entrance examination up, our classmates work harder and harder.
A. came
B. come
C. coming
D. having come
答案：
A. came
B. come
(答案→)C. coming
D. having come
解析：考查非谓语动词作状语.作状语时,过去分词表示发生过的被动的动作,和修饰词是动宾关系.现在分词表示伴随的正在进行的动作,和所修饰词是主谓关系,完成时态的分词表示已经完成的动作.根据题意,随着入学考试的到来,我的同学们学习越来越努力了.选C.
