The leave on the trees ____ yellow in autumn.A are turning B are turned C turning 选择并说明理由.

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The leave on the trees ____ yellow in autumn.A are turning B are turned C turning 选择并说明理由.
The leave on the trees ____ yellow in autumn.
A are turning
B are turned
C turning
选择并说明理由.

The leave on the trees ____ yellow in autumn.A are turning B are turned C turning 选择并说明理由.
选A
表示变化需要用现在时 特别是老师常说 看见turn就要想到用现在ing了
A和C差别就在个谓语动词
树上的叶子表示批量 则用are

a
leave是leaf的复数啊.

a

A 正在变黄(现在进行时、主动语态)