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题型：单选题题类：真题难易度：普通

____ the damage is done, it will take many years for the farmland to recover.

A、 Until B、Unless C、Once D、Although

举一反三

He is writing a book about new discoveries in science. I am sure, _________ it is printed, this book will be very popular.

The waste water has been made clean before it goes into the river ________ the new rule was made.

I had no sooner got back to the kitchen {#blank#}1{#/blank#} the doorbell rang loud enough to wake the dead.

________ got into the room ________ the telephone rang.

People began to concentrate less on religious themes and a{#blank#}1{#/blank#}(采取)a more humanistic attitude to life.

With the Entrance Exam approaching, I feel more and more stressed. It will ruin my college dream _____ I take action now as soon as possible.

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