1.I finally realized that it is imperative to do this.
2.As far as it concerns,he has not become aware of the jeopardy.
3.He has donated all his book collections to the library.
4.Teachers are expected to be devoted to education.
5.Befriend the righteous,avoid the evil.
6.He always acts as a good-hearted guy.
7.Could you lend me your bike for a while?
8.His deeds do not tally with his words.或者 He says one thing and does another.