if you have a job,__yourself to it and finally you 'll succeed A.devoting B.do devote

问题描述:

if you have a job,__yourself to it and finally you 'll succeed A.devoting B.do devote
为什么不能选A呢?

do devote这里其实就是devote,do只是表达强调的语气.devote yourself to it 与前文have a job是相并列的.都由if 引导.也就是,if you have a job and if you devote yourself to it 并列关系动词形式要相同.you have ...