---If I had time, I would go shopping with you.
---But you too busy.
A. were
B. had been
C. are
D. have been
网友回答
A. were
B. had been
(答案→)C. are
D. have been
解析：考查虚拟语气。根据前一句的形式说明这是一个与现在相反的虚拟语气，因为在条件句中如果与现在相反，条件句使用一般过去时，主句使用情态动词+动词原形；But后面使用陈述语气，故C正确。