what does.
1.呵呵楼主一定把on写成om了…
改：Adam only goes to school on weekdays.go to school去上学； go to the school到学校去（不一定是是上学去,如其他人来到学校）
2.Let's have a look at the picture.have a look看一看,后接物时加介词at.
3.I like eating oranges.like doing sth.
最后,Hangzhou is famous for West Lake.He is famous as a writer.be famous for因…而出名； be famous as作为…而出名.