七年级英语连词成句：teacher,music,she,does,like,mr Green,her. sunday,m

七年级英语
连词成句：teacher,music,she,does,like,mr Green,her.
sunday,my,day,favorite,of,the,week,is.
提问：He does his homework everyday 对 his homework
选择：i like biology and history Whydo youlike ?A.they B.it C.their D.them
另提问：什么时候动词后加ing和s或es遇到那些词不加?
我的选择题为什么选D?还有情态动词是什么？