57.众所周知，贸易和专门化相辅相成，使我们每个人能使用更多的产品。

3.

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。

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

41. The passage is mainly about the differences between British English and American English in _____. 

2.

66. China will develop its economy further and open itself wider to the outside world, which offers more business opportunities to overseas enterprises. Since China‘s reform and opening up, Chinese enterprises have been cooperating with overseas enterprises in terms of the economy and technology, and have scored great achievement. Overseas enterprises have not only helped Chinese enterprises with their growth, but also benefited from the cooperation. The Chinese government will continue to offer favorable policies and conditions to promote the further cooperation between Chinese and overseas enterprises.

60.如今人们有了更多的闲暇时间，因而对各种服务的需求增长得如此快。

（ ）15. People who have a large order can be given a special discount.

（ ）55. Ron’s wife is in hospital. He wants to finds a programme suitable for his three-year-old son while he gets on with the housework and prepares a meal.

（ ）51.Although Rob lead a quiet life in a small village, that doesn’t stop him from wanting to find out about the latest scientific development.

（ ）14. This company has a good reputation because of the high quality and good after-sale service of its product.