问题
选择题
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
答案:C
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。