寒假作业不会 急死

解释句子
1. Walking on the moon is great fun.
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2.I don't know where to get a cheaper toy.
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3.Can you show me how I can improve my Chinese?
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4.I want to know what we are going to discuss tomorrow.
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5.She has made very slow progress.Tina works hard.（用but连接）
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6.It is getting colder and colder, but she keeps on working.(用although改写）
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7.I asked him:"Will you have a meeting?"
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8.Koko jumped far,but Mary jumped farther.
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9.My brother is going to Beijing tomorrow.
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10.My cousin is so young that he can't join the army.
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解释句子
1.She wonders how to work out the problem.