Neither my wife nor I myself ____ able to persuade my daughter to change her mind．

One-third of the country ________ covered with trees and the majority of the citizens _______ black people.

The number of people invited __________fifty, but a number of them__________ absent for different reasons. 

—Two months ______quite a long time. 　　—Yes, I’m afraid that he will miss lots of his lessons. 

All that can be eaten ____ eaten up.