问题
选择题
—Come and join us, Jimmy!
---I’m sorry, but I’m really busy now. If I ________ time, I would certainly go.
A．will have
B．have had
C．had
D．have
答案
答案：C
题目分析：句意：——吉米，来加入我们吧！——我很抱歉，现在我真的很忙。如果我有时间，我一定去。在虚拟语气中，表示与现在事实相反时，从句：If+主语+过去时，主句：主语+ should/would+do。故选C。