surprised us very much that John should fail in the physic test．

– It is said that Frank is very rich and is always changing his private cars .What is he?–_______ of a manager, I am not sure.

—The exam was easy,wasn't it?—Yes,but I don’t think     could pass it.

How wonderful it will be that whoever is in need of a job can get        ．

With the rapid development of the Internet, _______ communication is done by regular mail.