问题
选择题
I used to go to the gym three times a week, but I don’t _______ any more.
A．work on
B．work at
C．work out
D．work for
答案
答案：C
题目分析：考查动词短语：A. work on从事，忙于，B. work at致力于，C. work out 锻炼，制定出，结果是，D. work for为…工作，句意：我过去一个星期去三次健身房，现在我不去锻炼了。选C。