helen and jim is good friends这句怎么改

helen and jim is good friends这句怎么改 Lucy and I are good friends怎么改同义句 Tom and Jim are good friends(改为否定句) 英语同义句转换器!原句：helen is good at playing the piano.改：helen () () Alice and Kitty are good friends.（改否定句） Jim and Bob (be) good friends. Jeff and Helen are Jim,s p .Jim is jim is good at english and maths.改为同义句 jim is good at English and Maths的同义句 怎么翻译“Tom and Jim are good friends and they are joined by bon Jim and Mike are good friends of __(Lucy).怎么填,为什么 Jim and Tom are good friends.怎么变一般疑问句并作肯否回答