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题型：单选题题类：真题难易度：普通

In order to protect the environment, we shouldn't ____any trees.

A、turn down B、put down C、cut down

举一反三

—— It's said that scientists have ________ a way to deal with the disease(疾病)
——Really? That's great!

It is said that his new book consists of nine chapters.

— I'm so tired after the long journey that I want to go to bed at once.

— You'd better ______ first and then have a rest.

Don't ______, or you can't do anything well．

I couldn't ____ these new words because I had no dictionary.

It is a bad habit to {#blank#}1{#/blank#} (起床) late.

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