36. Because there are about fifty million people have to go to doctor because of headache
37. They can see black dots or bright spot in front of their eyes.
38. Yes, they may
39. When they work too hard or they too nervous about something.
40. By changing their diets or their lifestyle or simply by going to bed.
41. My sister drinks less coffe than my brother
42. Even though our flat is very noisy, we enjoy living in it
43. Although the weather is bad, they had a wonderful holiday.
44. Spending the weekend in the countryside is very wonderful.
48. Ha fell her English Test ,therefore she had to do the test again
VI
27. actor/ actress
28. Weight
30. invention
VII
31. His computer is more expensive than mine
32. I like drinking apple juice. ...
33. I and some of my classmate go to school by bus ...
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