He does the same job ________, and he becomes interested in it ________.
A.day by day; by and byB.day after day; little by littleC.year by year; bit by bitD.year in year; one by one在线课程B
解析：
导解：题意“他日复一日地做同样工作，并且渐渐对它感兴趣”．little by little意为“逐渐地”；
by and by意为“不久以后”；
bit by bit意为“一点一点地”；
one by one意为“一个接一个”．注意短语搭配．