1. This view is now being questioned by more and more people.
这一观点正受到越来越多人的质疑。
2. Although many people claim that, along with the rapidly economic development, the number of people who use bicycle are decreasing and bicycle is bound to die out. 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.
3. Environmental experts point out that increasing pollution not only causes serious problems such as global warming but also could threaten to end human life on our planet.