下列句子都是什么意思啊?帮帮忙

1.a. Tom says the teacher is a silly donkey. 汤姆说他老师是蠢驴
b. Tom,says the teacher,is a silly donkey. 汤姆说，他老师，是一个蠢驴
2.a. Did he go over his lessons,then? 他那时候复习这节课了么
b. Did he go over his lessons then?
3. What a girl! 多好的一个女豪
4. He is a short story writer.他是一个短篇小说作者

1.a. Tom says the teacher is a silly donkey.
tom说这老师是一头蠢驴
b. Tom,says the teacher,is a silly donkey. Tom 认为这位老师是一头傻驴
2.a. Did he go over his lessons,then?
他思考过他的课程吗？
b. Did he go over his lessons then?
那么他思考过他的课程吗？
3. What a girl!
多好的女孩儿！
4. He is a short story writer.
他是个矮小的小说家。