—Be quick, please. I have to be there by 9:00
— , but I’ll try my best.
A. That’s all right
B. No problem
C. I can’t promise
D. It’s impossible
网友回答
A. That’s all right
B. No problem
C. I can’t promise
D. It’s impossible
解析：由but可知我会尽力的，但不一定能保证你按时到那儿。故选C。