2. Were there many subways or factories then? 当时有许多地铁和工厂吗?
3. There are no subways, no buses and no taxies in small cities and small towns. 在一些小城市或小镇,是没有地铁,没有公车,也没有的士的。
4. Nowadays, we can see the scene everywhere in the life: in subways, restaurants, roads, people are watching their mobile phones. 现在,我们的生活中到处都可以看到这一幕:在地铁、餐厅、道路上,人们都在看自己的手机。