【小题1】It’s a ____________(遗憾) for me not to help you.
【小题2】—May I use your ____________ (相机)?   —Sorry, I have lent it to Tom.
【小题3】Bob is the oldest ____________ (在……其中) the four boys.
【小题4】We are living in the 21st ____________ (世纪) now.
【小题5】Please ____________ (检查) your paper again.
【小题6】Stay away from junk food. It’s bad for us, ____________ (特别地)for children.
【小题7】We should ____________ (看待)our teachers as friends.
【小题8】We decide ____________ (买) these old books.
【小题9】Paul is a(n) ____________ (老实的) boy. We all like him.
【小题10】For__________reasons, Mr. Li left there without saying anything.