【题目】If you ______ at school, you ______ a college student now.
A. had studied hard; would have been
B. should have studied hard; should have been
C. had studied hard; would be
D. would study hard; must have been
在线课程【答案】C
【解析】
试题分析：考查虚拟语气。分析句意为：如果你在校期间努力学习的话，现在就是个大学生了。可以看出从句与过去事实相反，主句与现在事实相反。所以选C，从句用过去完成时；主句用would+动词原形。