10. Many city residents complain that it is so few buses in their city that they have to spend much more time waiting for a bus, which is usually crowded with a large number of passengers.

许多市民抱怨城市的公交车太少，以至于他们要花很长时间等一辆公交车，而车上可能已满载乘客。

11. There is no denying the fact that air pollution is an extremely serious problem: the city authorities should take strong measures to deal with it.

无可否认，空气污染是一个极其严重的问题：城市当局应该采取有力措施来解决它。

12. An investigation shows that female workers tend to have a favorable attitude toward retirement.

一项调查显示妇女欢迎退休。

13. A proper part-time job does not occupy students' too much time. In fact, it is unhealthy for them to spend all of time on their study. As an old saying goes: All work and no play makes Jack a dull boy.

一份适当的业余工作并不会占用学生太多的时间，事实上，把全部的时间都用到学习上并不健康，正如那句老话：只工作，不玩耍，聪明的孩子会变傻。