1、We think the theory with practice is very necessary（步行吧）
2、I'd rather walk than riding a bicycle
3、Mary and her classmates all like to play volleyball
4、He gave me the Chinese books not English book
5、I believe that we will meet again how long do not
6、The police are looking for the missing child in the earthquake
7、As the teacher had said,he failed again（老师吧）
8、The fog is becoming more and more strong