改同义句1、（改4句）He play the guitar and sing very well .2、（改3句）Mary and her classmatesare interested in callecting stamps 能改几句就改几句
问题描述：
改同义句1、（改4句）He play the guitar and sing very well .2、（改3句）Mary and her classmates
are interested in callecting stamps
能改几句就改几句
答
he is good at playing the guitar and sing.Mary and her classmates like collecting stampsCollecting stamps is Mary and her classmates hobby.Mary and her classmates' hobby is collecting stamps