按要求完成句子。
1. This is a strawberry. (改为否定句)
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2. That is my sheep.(改为一般疑问句)
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3. It’s a longan. (变成复数句)
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4. Do you like playing football? (做出否定回答)
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5. I’m in Class Three. (改为一般疑问句)
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