Your room should ―― (clean) every week or it will be dirty.A,clean B,cleans C,be cleaned D,be cleaning 为什么选C谢谢

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Your room should ―― (clean) every week or it will be dirty.A,clean B,cleans C,be cleaned D,be cleaning 为什么选C谢谢
Your room should ―― (clean) every week or it will be dirty.A,clean B,cleans C,be cleaned D,be cleaning 为什么选C谢谢

Your room should ―― (clean) every week or it will be dirty.A,clean B,cleans C,be cleaned D,be cleaning 为什么选C谢谢
你想想看 你的房间是需要被人打扫的 而不是他自己打扫自己 这里是被动语态 用be动词加动词的过去分词