1、Many experts point out that physical exercise contributes directly to a person's physical fitness.

　　2、The majority of students believe that part-time job will provide them with more opportunities to develop their interpersonal skills, which may put them in a favorable position in the future job markets.

　　3、An increasing number of experts believe that migrants will exert positive effects on construction of city.

　　4、People believe that computer skills will enhance their job opportunities or promotion opportunities.

　　5、The information I've collected over the recent years leads me to believe that bicycle will continue to play extremely important roles in modern society.

　參考譯文：

　　1、許多專家指出體育鍛煉直接有助于身體健康。

　　2、大部分學(xué)生相信業(yè)余工作會(huì)使他們有更多機(jī)會(huì)發(fā)展人際交往能力，而這對(duì)他們未來(lái)找工作是非常有好處的。

　　3、越來(lái)越多的專家相信移民對(duì)城市的建設(shè)起到積極作用。

　　4、人們相信擁有計(jì)算機(jī)技術(shù)可以獲得更多工作或提升的機(jī)會(huì)。

　　5、這幾年我收集的一些信息讓我相信自行車(chē)仍然會(huì)繼續(xù)在現(xiàn)代社會(huì)發(fā)揮極其重要的作用。