【题目】I call him ______ ; even when there is not much to say.
A. now and then B. by and by
C. step by step D. more or less
在线课程【答案】A
【解析】
考查副词短语辨析。句意：即使没有太多的话要说，我也会时不时的给他打电话。 A. now and then 时而； B. by and by 不就之后； C. step by step 逐步地； D. more or less 或多或少。根据句意，结合四个选项可知是我时而会给他打电话，故选A.