I haven't seen Anna since she left our hometown two years ago, but we do keep in touch with eac

题目简介

I haven't seen Anna since she left our hometown two years ago, but we do keep in touch with eac

题目详情

I haven't seen Anna since she left our hometown two years ago, but we do keep in touch with each
other by sending e-mails __________.
[     ]
A. here and there  
B. sooner or later
C. at one time  
D. now and then
题型:单选题难度:中档来源:同步题

答案

D

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