--Which do you like,the blue one or the red one?---Either color ___all right.A.are B.was C.were D.i最好是讲清原因

问题描述:

--Which do you like,the blue one or the red one?---Either color ___all right.A.are B.was C.were D.i
最好是讲清原因

答案:is
either表示两者之间的任意一者,所以be动词用单数