九年级英语根据要求完成下列句子.
1.ThisbikeisLucy's.Shegotitfromheruncleasagift.(改为同义句)
Thisbike________Lucy.Shegotitfromheruncleasagift.
2.Itmustbehers.(改为否定句)
It____behers.
3.ThisT-shirtmightbelongtoAlice(对“Alice”提问)
________thisT-shirtbelongto?
4.ThisisMary'smathsbook.(对“Mary's”提问)
____mathsbook____this?
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