A rainbow （）in the sky after the rain A was appeared B appeared C is appeared D are appeared选哪个 为什么 讲解仔细
问题描述：
A rainbow （）in the sky after the rain A was appeared B appeared C is appeared D are appeared
选哪个 为什么 讲解仔细
答
选B，该词无被动。
答
B.出现：appear,不用被动语态,所以ACD排除