单选题 —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

【正确答案】 A

【答案解析】[解析] could have done表示“过去本该做某事”，实际上并没有做，即与过去的真相违背。对话双方一位说在纽约时住旅社，另一位听了颇感吃惊(Oh， did you?)，说你本可在Barbara处住，可见他没有住在那儿，故应选A。must have stayed是极为肯定的推测，与题意不符，应排除。