Referring to reading, we must have the patience to read ______ book so that we will have _______ deep understanding of it.
_____ him speak English so fluently, and you would think him an American.
There is a crowd of people in front of the house over there. What do you suppose _____ there?
I don’t like _____ speaking ill of each other.
The electricity ____, the light went out.
The subjects we have at school _____biology.