大侠请-----Rewrite the following sentences,using the passive voice

题目

大侠请-----Rewrite the following sentences,using the passive voice
We call water liquid gold because it is precious.
People all over the world play football.
改为被动语态陈述句一般疑问句否定句
改为被动语态一陈述句二一般疑问句三否定句

答案

Water is called liquid gold because it is precious.
Football is played by people all over the world.

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