问题
选择题
I am too busy now. If I____ free, I ____to the cinema with you.
A．am; will go
B．am; would go
C．were; would go
D．was; was going
答案
答案：C
C if从句用的是虚拟语气，与现实（很忙）相反时，虚拟语气用一般过去时，be统一用were，主句用would do sth.
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