_______ his scientific work, he has no time to care for his family affairs, _______, of course,...

A

试题分析:考查分词用法。句意:致力于他的科学工作,他没时间关心他家里的事情,这当然是他妻子经常抱怨的。Be devoted to致力于…;形容词短语devoted to his scientific work修饰后面句子主语he;第二空填which,引导非限制性定语从句,指前面的事情,that不能引导非限制性定语从句,选A。