题干
— Thank you for your email, Millie.
— .
A：Don't say so.
B：That's right.
C：That's all right.
D：All right.
答案(点此获取答案解析）
C
— Thank you for your email, Millie.
— .
A：Don't say so.
B：That's right.
C：That's all right.
D：All right.
