protect，on，we，there be，a lot of，must，it，because，pollution，take action，to，the earth （.
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We must take action to protect the earth because there is a lot of pollution on the earth.We must take action to protect the earth because there is a lot of pollution on the earth.
【考點】肯定句．
【答案】We must take action to protect the earth because there is a lot of pollution on the earth.
【解答】
【點評】
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發(fā)布：2024/6/27 10:35:59組卷：1引用：1難度：0.5
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