He made it plain_____he was annoyed with me .

问题描述:

He made it plain_____he was annoyed with me .
A.that
B.what
选A.这句话的意思是什么,其中plain是什么意思

"他承认他的确很烦我."
plain理解为"明白的"
made it plain意思是"他承认/他澄清/他说明白"