单项选择题A.City people smoke less than people living on farms.B.The better-educated men tend to smoke more heavily than those with lower income.C.The better-educated women tend to smoke more heavily.D.A well-paid man is likely to smoke more packs of cigarettes per day.
单项选择题A.Fix the shelf.B.Paint the shelf.C.Write the letter.D.look for the pen.