--- My mother has a cold today, and I have to take care of her.
--- .
A. Thank you
B. Oh, I don’t know
C. I’m sorry to hear that
D. That’s Ok.
网友回答
A. Thank you
B. Oh, I don’t know
(答案→)C. I’m sorry to hear that
D. That’s Ok.
解析：在英语的习惯表达中，当听到别人不幸的事情时，应该表示难过，并说I am sorry to hear that.根据My mother has a cold today,可知，本题应该选C。其他选项都不符合题意，且不符合英语的习惯表达法。