If I( )long enoiugh to have a job,I would choose to be a doctor,(_英语解答

If I( )long enoiugh to have a job,I would choose to be a doctor,( )those AIDS patients
A.had lived;helping B.should live;help C.were to live;helping D.should have lived;help
该题正确答案应选C,说明其他几项为什么不对,

人气：193 ℃　时间：2020-04-09 12:05:28

解答

虚拟语气if有两种用法
if had done...would have done
if did/were...would do
这个可以判断是c
另外,helping是修饰docter.如果前面不是逗号而是and,就用would help