Though they are very busy every day, they manage to get tighter .
A. by and by
B. now and then
Call the time
D. more or less
网友回答
A. by and by
(答案→)B. now and then
C. all the time
D. more or less
解析：本题考查副词短语辨析。句意：尽管他们每天都很忙，他们还是不时地聚一聚。by and by“逐渐地”；now and then“时而，不时地”；all the time“一直”；more or less“或多或少”。