3． —Come and join us，Jimmy !—I-m sorry，but I-m really busy now．lf I _______ time，l would certainly go．
- A will have
- B have had
- C had
- D have
问题
3． —Come and join us，Jimmy !—I-m sorry
参考解析：
3.C【解析】由“我现在很忙”及主句谓语是“would+ 动词原形”推知，if从句应用虚拟语气，表示与现在的事实相反，从句谓语动词应用过去时。故答案为C。
分类：其他
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