单项选择题
A.The authorities. B.The pessimists. C.Both. D.Neither.
A.One mile. B.About four miles. C.Two miles. D.Less than four miles.
A. I think so. B. Haven’t seen you for ages. C. Please take it easy. D. Don’t mention it. E. Coffee, please. F. That’s just what I am thinking. G. No problem. H. I would if I coul