16. Living in the city has many a                 such as good schools, big shopping centers and so on.

17. They killed many sharks last year. How c                 they are!

18. It was her dream to enter the film i                 when Gong Li was very young.

19. So far, no s                 studies have shown that sharks fins are good for health.

20. I saw the White House where the P                 of the USA lives.

21. I don't like lions because they're u                .

22. People throw l                 into the river and make it really dirty.

23. It's important to r                (回收利用) paper to save the trees.

24. --- Do you know the a                 of this type of bicycle?

--- It's very light.

25. People generally think that he who kills a pet dog or a pet cat is c                .

26. When i                 is well developed in one country, the people there will be rich and live a better life.

27. Learning s                 knowledge is very useful.

28. John Adams was once P                 of the US.

29. The old lion has an u                 face. We are afraid of it.

30. If no one l                ,the park will be very clean.

31. My uncle decided to enter the film                 (行业) when he was in his fifties.

32. I suggest you use the public                 (运输工具) as much as you can.

33.                 (科学的) farming is very popular with farmers.

34. There is some information about the people who are                 (残酷) to animals.

35. Her mother couldn't                 (负担得起) to pay for her child's education.

36. When it comes to climate, warm conditions and a normal amount of rainfall are                 (有利条件) that attract people.

37. Now, most supermarkets in China have stopped providing shoppers with free