问题补充：
— Can you play tennis with me?
—. I have to study for a math test.
A. That sounds good
B. I’m sorry, I can’t
C. I’d love to
D. Thank you
答案：
A. That sounds good
(答案→)B. I’m sorry, I can’t
C. I’d love to
D. Thank you
解析：ACD选项都表示肯定性意思，从上下文来看，选项B对不起我不能，最符合题意。
