It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
He wanted to read more,so he asked his friend if there wasto read.
—I heard the peasants herevery poor in the past. —Yes,but theregreat changes in the past few years.
—Has Billy finished his homework today? —I have no idea.Heit this morning.
These wild flowers are so special I would do _______ I can to save them.
Parents are taught to understand _______ important education is to their children’s future.