按要求完成下列句子。
1．There is a boy on the bike. (改为复数句)
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2．They are eating fish. (对划线部分提问)
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3．There is a bear in the picture. (改为否定句)
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4．are, in, there, the, chickens, photo, three (.)
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5．Is the panda eating fruit? (作肯定回答)
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