When their father died,they thought it their duty to keep Eric in hiding.it后面是不是省略了be动词,如果是,为什么可以省略呢,如果不是,it后面怎么可以直接加their...

分类: 作业答案 • 2022-06-23 18:39:30

问题描述：

When their father died,they thought it their duty to keep Eric in hiding.
it后面是不是省略了be动词,如果是,为什么可以省略呢,如果不是,it后面怎么可以直接加their...

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