10.clericalworkers
e.g. It is the reason why clerical workers today usually suffer(vi,vt) health problems.
11. promotional opportunities
e.g. Many employees are willing to work in those companies where they can acquire promotional opportunities.
12. English-speaking countries, study at somewhere, world famous university
e.g. Many young people have chosen to study in English-speaking countries, where they can study at world famous universities.
