he didn't go to the meeting because he was not ____of it

问题描述:

he didn't go to the meeting because he was not ____of it
a.informed b.invited c.interviewed d.reformed
为什么

a 他没有出席会议因为他没有被告知 inform sb of sth 这里转换了形式为被动 sb be informed of sth
其他2个后面的介词不对,最后一个意思不对