---What would you wish to do if you were&nb

问题补充：

---Whatwouldyouwishtodoifyouwereacollegestudentagain?

---That'sveryhardtosay,butIwishI______whenIwasacollegestudent.A.has not studied biologyB.did study biologyC.had studied biologyD.studied biology

答案：

C解析本题考查wish后接宾词从句的用法。Wish后接宾词从句，从句的谓语动词要用虚拟语气，因为题干提示与过去事实相反，故用had done。