Nowadays, there is a ____ that receiving education is a waste of time. 

Hiking by oneself can be fun and good for health. It may also be good for      building.

 A sense of __________ is the basic requirement for people working in the service industry,     such as education and health care.

John has got a bad fever these days, and he says he doesn’t want to see a doctor, but I’m afraid he has no______.

In my opinion, the most famous 　　　　 to tourists in the city is the wooden tower.