It was not until the 18th century that man realized that the whole of the brain was involved in the working of the mind, ?
We are having a class get-together. It’s been twenty years we graduated from high school.
—I have finished the homework. — . How about going out for a walk?
—You seemed not to be interested in the story yesterday. —Yes. I it in a magazine before.
We should go to school by bus or underground rather than by car global warming.
—Now, where is my key? —! They are waiting for us at the school gate.