27．It’s impolite for you the teahouse without goodbye to your friends． A．leaving.say B．leaving.to say C．to leave.saying D．to leave.to say 【查看更多】

 

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It's impolite for you ________ the teahouse without ________ goodbye to your friends．

A．leaving，say           B．to leave，saying         C．leaving，to say     D．to leave，to say

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