they are writing a position 被动语态
网友回答
The position is written by them.
======以下答案可供参考======
供参考答案1:
A position is writing by them.
供参考答案2:
A position is written by them.
供参考答案3:
A position is writed by them.
供参考答案4:
主动语态：They are writing a position.
被动语态：The position is written by them.