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Tony used to be a quiet student, ________ now he is active in class.
1年前
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Before you go to Canada, you need to learn more it.
1年前
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We all want to try something new, but finding the _________ to start is always the hardest part.
1年前
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he does his homework every day.变一般疑问句.肯否定回答.否定句
1年前
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400KVA变压器输出用两根3*185+1的铜电缆并接可以吗？
1年前