This sign tells us how we should do something.(句意不变） This sign tells do something.

分类: 作业答案 • 2021-12-19 23:19:20

问题描述：

This sign tells us how we should do something.(句意不变） This sign tells __ __ do something.

答

howto

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This sign tells us how we should do something.(句意不变） This sign tells __ __ do something.