单选题 A: Doctor Smith is engaged on Wednesday. Would you like to come on Thursday?
B: ______.
A. Thursday would be fine. B. See you then.
C. Thank you very much. Good-bye. D. It's very kind of you.

【正确答案】 A

【答案解析】意思是“星期四可以”。A说：“史密斯医生星期三有约了，你愿意在星期四来吗?”选项B意思是“到时候见”。如果A说“Doctor Smith is available on Wednesday．”，则选择B。