I have learned from my bitter experience　　　we don’t knowwe’ve got until it’s gone.

Our goal is to make higher education available to anyone who is willing and capable ______ their family background and financial situation.

e the shop_______, all the T-shirts are sold athalf price

declared that it ______byfast-spreading H1V1, which ____other countries nearby.

The chemical factory is far away in themountains. It is nearly ____ ride from the city.