More than one student ___ that experiment.

I, who ______ your close friend, will try my best to help you out of trouble.

---What should I do  If I had a million dollars? --- If I ______ you, I would  give it to medical research.

The brown trousers _______ 70 dollars. And that white pair of trousers _______ 80 dollars.

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