选择并用其适当形式填空:aren it,are,is,isn it,am,these,this,not.( )she M
选择并用其适当形式填空:aren it,are,is,isn it,am,these,this,not.( )she Marina?Is( )your bike?
( )you Kumiko?No,I( )not.I( )HanMei.I am Chinese!Are ( ) your books?---Yes,they are.( )you a student?——No,I ( ) not.