91、近年来,中国开启了“高铁外交”的进程,把东南亚,中亚等邻国以及部分欧洲国家作为高铁推销的对象,构建以中国为起点的高速铁路网,扩大对周边国家的影响。目前,中国已经和50多个国家和地区建立起了高速铁路合作关系,总合同额为260亿美元。开展“高铁外交”( )
①有利于拉动经济发展,带动产业升级,②有利于推动政治一体化进程,③有利于促进区域交流、改善人民生活,④改变了世界贸易结构

7)Although the new approach (to) language teaching has been adopted, its effect remains unknown.

6) (under) in no circumstances should you lend Paul any money.

5) They moved to the new apartment because schools and hospitals are near(at) hand

4) It was the driver’s careless driving that led(to)the traffic accident last night.

3)(In)the case of writing style,the former is more attractive.

2) Little John always shares his toys(wthe) other boys.

1) The computer has made a great impact(on)our social life.

9) At the opening ceremony, the audience was impressed(by)the children’s performance.10) 10)The hunter tried to track(down)the wounded animal.

8) The company must constantly strive(for)greater efficiency

7)Our mission is to seek(out)the enemy and destroy them. say