题干
-- Don't keep water running when you wash hands.
--
A：I hope so.
B：I'm afraid not.
C：Sorry, I won't.
D：It's nothing.
答案(点此获取答案解析）
C
-- Don't keep water running when you wash hands.
--
A：I hope so.
B：I'm afraid not.
C：Sorry, I won't.
D：It's nothing.
