My mother has a cold today and I have to take care of her.A. Thank youB. Oh I

问题补充：

--- 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.

答案：

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。