33．Polar bears live　　　 on sea ice，which they use as a platform for hunting seals.

　　 A．most　　　 　　　　 B．almost　　　 　　　 C．nearly　　 　　　　 D．mostly

32．Women prefer to buy food which has already been prepared　 it reaches the market.

　　 A．after　　　 　　　 B．for　　　 　　　　 C．before　　 　　　 D．until

31．After being discovered by Dutch explorers in 1606，the eastern half of Australia　 ____by the British in 1770.

　　 A．was claimed　 　 B．claimed　 　　　　　 C．was claiming　 　　 D．has been claimed

30．The children of mothers who use cocaine are often born________ the drug.

　　 　 A．addicted to　　　　　 B．engaged in　　　　　 C．related to　　　　　　 D．concerned about

29．Russia will soon return 174 sq km of territory on the northeast border to China, 　　　________more than 40 years of negotiations.

　　 A．ending　　　 　 B．ended　　　 　　　 C．to end　　　 　　 D．being ended

28．After the College Entrance Examination , we spent a most ______period. We　 had to work hard in a private factory by _____,although　 we got poorly paid by_____.

　 A．tired; the day; day　　　　　　　　 　 B．tiring; the day; day

　 　 C．trying; day ;the day　　　　　　　 　 D．tried; day; the day

27．It’s a reference book intended to ______ mainly to students of grade 3.

　 A．appeal 　　　　　　　 B．attach　　　　　　　　　 C．contribute　　　　　　 D．refer

26．In a sports team each player has a clear role, and there are few occasions ________members are confused or uncertain of their roles.

　 　　 A．why　　　　　　　　　　 B．where　　　　　　　　 C．when　　　　　　　　　 D．in which

25．If you are out to get up early and do exercises every morning, it will _____good health.

　 　　 A．get across　　　　　　 B．end up in　　　　　　 C．make for　　　　　　 D．contribute for

24．What successful language learners have in common is,___________, that they are interested in understanding their own thinking and confident in their ability.

　　 　　 A．to make matters worse　　　　　　　　　　　　 B．in the first place

　 　　 C．among other things　　　　　　　　　　　　　　　 D．apart from