--I stayed at a hotel while in New York. ---Oh, did you? You with Babara.
A. could you stayed
B. could stay
C. would stay
D. must have stayed
网友回答
A. could you stayed
B. could stay
C. would stay
(答案→)D. must have stayed
解析：根据句意可知，这里要表达的是：你一定是和Babara呆在一起的。must have stayed表示对过去的事情有肯定猜测。