A new _______to teaching English is being used here, and it has proven to be very helpful to the students. 

—I have to ask a(n) _____ of you because the luggage is too heavy for me.—Oh, with pleasure.

The police have issued a detailed ____________ of the missing boy. 

In China, the education is divided into three _______: basic education, higher education and adult education.

If you don’t speak good English,you will be at a big      when you try to get a good job.