Peoplewhocan’t_______betweencolorsaresaidtobecolor-blind.
A、separateC
distinguish ：区别，辨别。 distinguish 多与 between、from 搭配 .
During the past two decades, research has ________ our knowledge of daydreaming.
When _______, water will be turned into steam.
I understood from her that you undertook other important work ______.
________，he had no time to rest.
Since we have a focused subject ，we should not talk ________.
