If we ________ last Sunday, we ________ in New York now.
A、had set out，need have been
B、had set out，might be
C、had set out，coule have been
D、had set out，must have been
【正确答案】：B
【题目解析】：根据last Sunday可知，if引导的条件状语从句是对过去的事实的假设，所以要用had done，主句用 情态动词+have done.
