第11题: [单项选择]Mr. Stephen used to smoke a pack of cigarettes a day, but now he has decreased to half a pack. A. cut off B. cut in C. cut down D. cut across 参考答案:C 答案解析:decrease:减少,和cut down(削减、减少)同义;cut off:(突然)中止、切断;cut in:插话、插入,其后通常跟介词on;cut across:抄近路穿过。