Question

If you ________ hard at high school, you ________ a college student now．

1. A.
   had studied; would be
2. B.
   study; should have been
3. C.
   had studied; will be
4. D.
   study; must be

Answer 1

A
虚拟条件句：从句与过去事实相反：用had studied结构：表示：如果当初你在高中努力学习的话；主句的内容与现在事实相反，用would be表示：你现在就是个大学生了。