用is,.are,this,these,it,they,isn′t,aren′t 填空 1.___ ___your books?yes,___ ___ 2.__ __his shirt?No,__ __.3.___ ___spoon hers?yes

用is,.are,this,these,it,they,isn′t,aren′t 填空 1.___ ___your books?yes,___ ___ 2.__ __his shirt?No,__ __.3.___ ___spoon hers?yes
用is,.are,this,these,it,they,isn′t,aren′t 填空 1.___ ___your books?yes,___ ___ 2.__ __his shirt?No,__ __.3.___ ___spoon hers?yes

用is,.are,this,these,it,they,isn′t,aren′t 填空 1.___ ___your books?yes,___ ___ 2.__ __his shirt?No,__ __.3.___ ___spoon hers?yes
1 Are these
they are
2 Is this
it isn't
3 Is this
it is.

1. Are these;  they are

2. Is this....it isn't

3. Is this。。。。it is

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1.is it it is
2.is it it isn't
3.is this it is

are these,they are,is this,it isn't,aren't these