31．Something must be done to prevent the river from　　 　　　(受污染)．(pollute)

29．Separated from European mainland, Britain is 　　　　　　dependent on imports for its raw materials.

　　　 A．poorly　　　　　　　　 B．hardly　　　　　　　　 C．likely　　　　　　　　　 D．heavily

28．Many of the more 　　　　　　forms of cancer can be treated successfully if detected early.

　　　 A．usual　　　　　　　　　 B．general　　　　　　　　 C．common　　　　　　　 D．popular

27．With the pace of modern life speeding up,　　　　　 　food is more and more popular.

　　　 A．quick　　　　　　　　　 B．instant　　　　　　　　 C．needy　　　　　　　　　 D．urgent

26．All present were shocked by what the little girl 　　　　　　when she was cheated and sold to the mountain village.

　　　 A．went over　　　　　　 B．went through　　　 C．got along with　　 D．got away

25．It was foolish of him to 　　　　　　　his notes during that important test, and as a result, he got punished.

　　　 A．refer to　　　　　　　 B．stick to　　　　　　　　 C．come to　　　　　　　 D．turn to

24．－How come a simple meal like this costs so much?

　　 －We have 　　　　　in your bill the cost of the cup you broke just now.

　　　 A．added　　　　　　　　 B．included　　　　　　　 C．charged　　　　　　　 D．contained

23．As civilization 　　　　, more and more people have realized the importance of preserving rare animals from extinction

　　　 A．covers　　　　　　　　 B．increases　　　　　　 C．spreads　　　　　　　　 D．passes

22．The passengers were lucky to escape 　　　　　when their train went off the tracks last night.

　　　 A．injury　　　　　　　　 B．damage　　　　　　　 C．wound　　　　　　　　 D．hurt