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题型：单选题题类：常考题难易度：普通

黑龙江省哈尔滨第四十七中学2017届九年级上册英语开学考试试卷

Sometimes people won't know the value of friendship _______ they lose it. Therefore， my dear friends，don't try to know your friends' privacy(隐私) _______ say something bad behind their backs.

A、until; while B、when; and C、before; or

举一反三

——Is Pan Changjiang tall _________ short? -

——He is short.

_______ Lily _______ Sam likes popular songs, so they went to Lin Feng's concert together last night.

— When will she arrive?

— ______________ she arrives, I will let you know.

It's raining outside. Don't leave ______ it stops.

—Mike, please turn down the music, ____Lucy _____Lily are sleeping.

—Sorry, I'll do it right away.

Sharks are facing danger! The situation won't change ________ humans stop killing them.

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