英语提问：介词后面不是只能接名词、动名词吗,下列句子怎么接的全是形容词?
I was told about it in private.(private 形容词 私下的）
The motor operates well as usual．.(usual 形容词 平常的）
I noticed her eyes in particular,because they were very big．(particular形容词 特别的）
为什么介词后全是接形容词,老师说介词后面只能接名词、动名词,怎么回事啊?