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题型：单选题题类：常考题难易度：容易

山西省太原市尖草坪区2019-2020学年六年级上学期英语期末试卷

The earth was clean and beautiful. But now some parts are ___________________. We should stop cutting down more trees.

A、fresh B、cool C、dirty

举一反三

The light is . We can cross the road.

How beef do you want?

Don't be . You should take a deep breath.

Did he learn _______foreign languages?

When you eat dinner at someone's home in India, it's ______ to eat with your left hand.

There is ____ water or air on the moon.

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