--- I stayed at a hotel while in New York .
--- Oh, did you? You ＿＿＿＿ with Barbara．
A. could have stayed
B. could stay
C. would stay
D. must have stayed
网友回答
(答案→)A. could have stayed
B. could stay
C. would stay
D. must have stayed
解析：could have done表虚拟，意为“本来能够做…（而事实上没做成）”，句意为“噢？你呆在宾馆了！你本来可以和芭芭拉住在一起的”。