We no longer keep up the close friendship of few years ago, though we still visi

题型：不详难度：来源：

We no longer keep up the close friendship of few years ago, though we still visit each other_____.

A．in good time	B．up to date
C．on occasion	D．once and for all

答案

C

解析

译文：虽然我们仍不时地拜访对方，但在几年以前，我们之间的关系已经不那么密切了。on occasion有时，不时。A选项：在适当或有利时刻。B选项：现代的。C选项：时而，不时。D选项：只此一次，绝不再重复。