my mother is keys are on the sofa 改为否定句

my mother is keys are on the sofa 改为否定句 My keys are on the sofa 同上 Where are my keys?将答语补充完整.Is the baseball on the sofa?做否定回答 the keys are on the sofa 改为一般疑问句 并做否定回答 The baseballs are on the sofa.(改为否定句) I think my keys are on the desk.改为否定句 I __ __ my They are on the sofa改为否定句 The baseball is on the sofa（改为否定句） Are your keys on the sofa?作否定回答 The keys are on the desk(改为否定句) The keys( )( ) on the desk. My keys are （on the sofa).同上 My brother is (in bed).同上 The p That is a bag.改为复数句 The baseball is on the sofa改为否定句 Are the