8.7 We offered him our congruatulations____his passing the college entance examsA at B onC forD of
问题描述：
8.7 We offered him our congruatulations____his passing the college entance exams
A at
B on
C for
D of
答
C 为某事而庆贺
答
on
答
选B.offer sb congruatulations on sth.是固定短语。
答
B
congratulate sb on sth
因某事而祝贺某人
答
B on
固定搭配congratulations on sth
如果后面跟人,则congratulations to sb