39. From the passage we can draw the conclusion that ______.

（ ）13. The products of company are sold only at home.

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

（ ）12. The company was set up 15 years ago.

23. If we ______ adequate preparations, the conference wouldn’t have been so successful. 

44. What can we learn from the passage?

17. He was very busy yesterday; otherwise, he _____ to the meeting.

2.

45. Which of the following is WRONG according to the passage?

63.我们真希望你昨晚没那么多工作要做,因为我们都知道你肯定会在晚会.上玩得很开心。

21. ______ the course very difficult, she decided to move to a lower level.

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