单选题 It is often said that ______ teachers have ______ very easy life.
   A) /, /             B) /, a         C) the, /       D) the, a
【正确答案】 B
【答案解析】teachers此处用名词复数表泛指，指一切老师；have a...life相当于live/lead a...life过一种……样的生活。