Each book____broken down into several units.在空白处应该填is,was,has还是have?为什么?

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Each book____broken down into several units.在空白处应该填is,was,has还是have?为什么?
Each book____broken down into several units.在空白处应该填is,was,has还是have?为什么?

Each book____broken down into several units.在空白处应该填is,was,has还是have?为什么?
填 is
Each book is broken down into several units.
每本书都被划分到特有的单元.
这是个被动不能用 has,have.这又在说一个现在的状态,用一般现在时.所以填：is.

Each book__is__broken down into several units.
每本书都被划分到特有的单元。
这是个被动句子，所以不能用 has,have。而且是表示现在的状态，用一般现在时。填：is.

Each book__is__broken down into several units
每本书都被分为几个单元。
这基本属于客观事实，所以用一般现在时；
而主语跟break down之间是被动关系，所以用被动语态；

Each book____broken down into several units.在空白处应该填is,was,has还是have?为什么? each each each each each For each for each love each meet each think each at each .on each.each.in each的用法 greeting each each用法 each picture. each of in each each是什么意思