1.If you are not totally (total) satisfied,return it at our expense.
2.A man stood up and crossed his arms over his head, signaling (signal) that he was strongly opposed.
3.With many problems arising (arise),he didn't know what to do next.
4. Personally (person) speaking,I am satisfied with all the work you have done.
5.Money does not always bring happiness (happy),but without it people often can't live well.
6.This question is too difficult for the children.I think we'd better find a way to simplify (simple) it.
7.After graduating from the college,he made an application (apply) to the school for a job as a teacher.
8.I was told the Learning Center provides help for students and I'm anxious to get help from you.
9.The students are looking forward to having an opportunity to explore (explore) society for reallife experience.
10.With global warming becoming more and more serious,it won't be long before some coastal cities disappear.