21. Her works were bad and below the required s                .

22. Read the i                 carefully before you take the medicine.

23. After the earthquake, many families were s                .

24. I feel a little t                , give me a bottle of water, please.

25. You should s                 the situation before doing that.

26. How can you o                 the difficulties?

27. I want to be a computer programmer after I g                 from the college.

28. The m                 gave the workers two days off yesterday.

29. A s                 room with double beds costs￥160.

30. You'd better follow these i                (命令,指示) given by your teacher.

31. They set up a s                 country of their own.

32. She was very t                . She wanted to drink something.

33. This s                 looks into the general health problems the students have in their life.

34. Scientists are trying their best to o                 the disease.

35. What will you do when you g                 from the university?

36. The m                 of the famous company(公司) is only 22 years old.

37. I want to book a s                 room with two single beds.

38. You should read the i                 before you take the medicine.

39. We s                 all of garbage into paper, plastic and metal.

40. I'm very t                . Let's go and have some water.

41. Helen felt quite