I can't give my son the leading position. ，he is too young；secondly，I want Mr.Smith to have the job.
A. After all
B. For example
C. In the end
D. To begin with
网友回答
A. After all
B. For example
C. In the end
(答案→)D. To begin with
解析：after all毕竟，终究；for example例如；in the end最后；to begin with 首先。根据句意知应选D项。