We Professor Smith the day before yesterday to celebrate his birthday.

问题描述:

We Professor Smith the day before yesterday to celebrate his birthday.
We _______ Professor Smith the day before yesterday to celebrate his birthday.
A.called forB.called onC.called outD.called up 为什么呢?

B
call on 拜访
call for 要求,需要
call out 唤起;出动;大声叫唤
call up 打电话给;召集;使想起;提出
根据意思判断是call on