English is considered as a(n) _____ language, and it is no surprise that there are so many people in the world learning English.
A cook will be immediately fired if he is found _______ in the kitchen.
One-third of the country____ covered with trees and the majority of the citizens______ black people.
Having a trip abroad is certainly good for the old couple, but it remains____ whether they will enjoy it.
Mencius believed that the reason why man is different from animals is______Man is good.
_____ with so much trouble, we failed to complete the task on time