根据要求完成句子。
[[QOrDeR]]It is a dog. (变为一般疑问句)
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【小题2】This isa bear.(对划线部分提问)
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【小题3】The bear and the pig are big and fat. (英译汉)
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【小题4】that/ is/ what (?) (连词成句)
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【小题5】a/ duck/ is/ this(.) (连词成句)
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