He does the same job ________, and he becomes interested in it ________.

A.day by day; by and by

B.day after day; little by little

C.year by year; bit by bit

D.year in year; one by one

答案及解析： 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．