Mr. Li, who _____ his whole life to education, is retiring next month.
The __________ of thestudents in that class __________ boys.
I never expected you to __________ at the meeting. Ithought you were abroad.
All the __________expressed their opinions on the __________ of the world.
In the face of __________ failure, it is the most important to keep up __________ good state of mind.
In front of our house __________ we used to swim.