欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

17、 Does mass _______________ (失業(yè)) depress wages? 

二、選擇題

（每空？ 分，共？ 分）

16、We need to establish a system to control the total amount of p_______________ discharge (排放) into the key sea areas, especially chemical wastes.

15、

The watch comes with three years’ g_____________, ie a promise to repair it free for three years after being bought.

14、I don’t _________ rock ’n’ roll. It’s much too noisy for my taste.

A. go after      B. go away with     C. go into        D. go in for

13、______ is reported in the newspapers, talks between the two countries are making progress.

A. It              B. As            C. That            D. What

12、_____ on -going division between English - speaking Canadians and French-speaking Canadians is _______ major concern of  the country.

A. The; 不填       B. The; a        C. An; the         D. An; 不填

11、We cannot figure out _______ quite a number of insects, birds, and animals are dying out.

   A. that                B. as                  C. why                      D. when

10、There’s _____ cooking oil left in the house. Would you go to the corner store and get _____?

A. little; some          B. little; any          C. a little; some              D. a little; any

9、_____ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.

A. To wait            B. Have waited          C. Having waited                    D. To have waited

8、The teacher, with 6 girls and 8 boys of her class, _______ visiting a museum when the earthquake struck.

A. was                B. were                  C. had been                 D. would be