问题
选择题
We offered him our congratulations＿＿＿＿＿his passing the college entrance exams.
A．at
B．on
C．for
D．of
答案
答案：B
offer sb. congratulations on sth. or doing sth.＝congratulate sb. on sth. or doing sth.
搜题请搜索小程序“爱下问搜题”