Помогите с заданием плиз по английскому!

I was informed about it by them.
The rules must be obeyed by you.
The videos like this can be bought anywhere.
The story of this place has to be written by someone.
Their can has been sold by them to pay the debts.
A meeting is held by them in the village hall once a week.
That there is no life on the Moon has been proven by them.

1. I was informed about it (by them).
2. The rules must be obeyed (by us).
3. Videos like this can be bought anywhere.
4. The story of this place has to be written by someone.
5. Their car HAS been sold by them to pay their debts.
6. A meeting IS HELD by them in the village hall once a week.
7. It HAS BEEN proved that there is no life on the Moon.

PS Хотела было Tatiana +5 поставить, а потом подумала: "С какой стати, если в 3 предложениях из 7 есть серьёзные ошибки! " Пришлось поучаствовать самой; -)

1) I was informed about it by them
2) You must be obeyed the rules
3) The videos like this can be bought everywhere
4) The story of this place has to be written
5) Their car has to be sold to pay debts
6) The meeting is hold in the village hall once a week
7) The life on the Moon isn't prooved

1. I was informed about it by them
2. The rules must be oobeyed by us
3. Videos like this can be bought anywhere.
4. The story of this place has to be written by someone.
5. Their car have been sold by them to pay their debts.
6. A meeting was hold by them in the village hall once a week
7. It was proved that there is no life on the moon

1) Они сообщали мне об этом. (был сообщен? )
2) Вы должны повиноваться правилам. (должен повиноваться? )
3) Вы можете купить видео как это где-нибудь.
4) Кто-то должен написать историю этого места.
5) Они продали свой автомобиль, чтобы заплатить долги.
6) Они проводят встречу в деревенском зале один раз в неделю.
7) Они доказали, что нет никакой жизни на Луне.