-----Howwillamandotosucceedinhislife?  -----Heistomake...

问题详情：

 -----How will a man do to succeed in his life?

   -----He is to make every effort _______he can achieve something.

   A. before                    B. after             C. unless            D. when

【回答】

A

知识点：连词

题型：选择题