题目内容
We all write to each other ________ ,
even when there is not much to say.
A. now and then B. step by step
C. by and by D. more or less
答案：A
解析：
解析：
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题目内容
We all write to each other ________ ,
even when there is not much to say.
A. now and then B. step by step
C. by and by D. more or less