题干
— You don't look well. ?
— I have a sore back.
A：How are you
B：What's the matter
C：Can I help you
D：Who is speaking
答案(点此获取答案解析）
B
— You don't look well. ?
— I have a sore back.
A：How are you
B：What's the matter
C：Can I help you
D：Who is speaking
