79. Before there goes the bell for class, our math teacher took out a piece of and wrote his problems on the blackboard.
The happy news quickly ______ through the whole village.
The government has to close those small factories to prevent the water of the river ______.
Some of the doctors are paid almost ______ as the nurses.
______ I’m well again, I can go on with my work.
He wants to see changes in the company and I am sure he will, ______.