44. What can we learn from the passage?

28. I have heard a lot of good things about you ______ I came back from abroad.

（ ）54.Gina is a music teacher. Although she prefers classical music, she likes to follow the kind of music that interests the teenagers she teaches.

42. It’s implied in the passage that the author may be _____. 

2.

59.在加工过程中，会重新人为加入某些食物的维生素和矿物质，但却未必和原来的一样健康。

19. You cannot accept an opinion ______ to you unless it is based on facts.

46.The ______ of bacteria causes body odor.

40. The main purpose of the passage is to ______.

30. Scientists have obtained more evidence ______ plastic is finding its way into the human body.

34. Most people work because it’s unavoidable. ______, there are some people who actually enjoy work. 

10.