Jane and I have a lot in common
Jane has a lot in common (with )(me)
同义句You two have a good time
(Both ) （ of ）you enjoy yourselves
同义句I have been in China for six months
(It ) （is 　）six　　months　　　since　　I　　came　　to　　China
祝你假期愉快!加油!不明白再问!第三个用不用过去式啊？不用