chen jie and mike is studente改为否定句

chen jie and mike is studente改为否定句 Chen Jie is helpful at home 改为否定句 Chen jie and Mike are Chen Jie sometimes does morning exercises on Sunday.（改为否定句） what__ Mike and Chen jie going to do this afternoon? Chen Jie and Mike____(is are)my(friend friends) Tom and Mike have got some storybooks改为否定句 i have mike and bread for breakfast(改为否定句) Both Tom and Mike like playing football.改为否定句 Mike can sing and play the piano.(改为否定句) my name is Chen Jie的答句是什么 Chen Jie and Mike are singing.如何变过去时,谢谢.