Question

--- 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 ?

Answer 1

A

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”。