It is spring now.All the leaves have turned____.(A.green B.greens)

题目

It is spring now.All the leaves have turned____.(A.green B.greens)

答案

A
It is spring now. All the leaves have turned green.
现在是春天了.所有叶子都变绿了.

turn为变化系动词,后面加形容词.green为形容词,形容词没有复数.