| We should do our best (save) trees. |
There are (million) of stars in the sky.
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He is a strong (fight) for the right(权利) of the children.
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There are many kinds of (gas) in the air.
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I spent the morning (dig) in my garden.
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When the teacher came in, the student stopped (talk).
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— Why can't these trees grow in the north?
— Because cold weather is (harm) to them |
Can you tell me when (plant) the tree?
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Many (live) things will lose their homes because of deforestation.
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We can use trees (make) paper, so trees are important to us.
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