---Sorry. I must be off. ---How nice it would be if you a bit longer! A.stay B.
来源：网络
时间：
推荐文章
---Sorry. I must be off.
---How nice it would be if you_____a bit longer!
A.stay B. would stay C. stayed D. have stayed
试题答案
C
解析:
由句中的“would be”可知, 这是一个与现在事实相反的虚拟语气, 从句要用一般过去式stayed, 故答案为C。