What most parents are concerned about is.语法请问为什么这句话中要加个are,不能说What most parents concerned about is.如果换care about ,前头要不要加个are?

分类: 作业答案 • 2022-02-17 14:24:56

问题描述：

What most parents are concerned about is.语法
请问为什么这句话中要加个are,不能说What most parents concerned about is.
如果换care about ,前头要不要加个are?

答

be concerned about这是固定词组
care about不用加be动词
而What most parents are concerned about 是本句句子的主语