W: Mr. Smith, I m sorry I didn t finish my homework on time
单项选择题 W: Mr. Smith, I'm sorry I didn't finish my homework on time
M: （）I know you've been taking care of your father these days
A.That all depends
B.Help yourself
C.You are welcome
D.Come on
正确答案：D
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答案解析:(对别人抱歉、不幸表示理解和体谅，D正确)
