The house was in__A.dark B.darkness

问题描述:

The house was in__A.dark B.darkness

房子处于黑暗中.选B.
dark是黑暗的形容词,darkness是名词.
in是介词,后面需要加名词,所以选darkness.
可以将be in darkness,处于黑暗中,作为一个短语来记.