将下列句子改为被动语态

1、What did you bring this time?
> What was brought this time by you?
2、When are you going to buy a new TV?
> When will a new TV be bought by you?
3、We'll hold a meeting next Monday.
> A meeting will be holded next Monday.
4、My parents didn't allow me to watch TV at night.
> I was not allowed to watch TV at night by my parents.
5、Did your mother give you a birthday present?
> Was a birthday present given to you by your mother?