Complete the sentences with an appropriate modal verbs. 1. Why don’t we buy some new furniture for the house? some new furniture for the house? 2.You aren’t allowed to use the office computers. the office computers. 2. It is possible that Kate is at her brother’s. at her brother’s. 4. Would you like me to call your parents for you? your parents for you? 5. I advise you to go to university. to university. 6. Richard managed to buy a new car after saving for months. a new car after saving for months. 7. I’m sure Alex isn’t at work. at work. 8. Perhaps Eric will have time to come shopping with us. time to come shopping with us. 9. It isn’t necessary for you to do the washing-up. the washing-up. 10. I’m sure he is French. French.

1 Newspapers are read by my father every morning.

2 Food is bought for our pets twice a week.

3 Bananas are loved by monkeys.

4 A lot of questions were asked by the students at the conference.

5 Detective stories were written by Agatha Christie.

6 Your homework will be done by you  tomorrow.

7 A special cake will be baked by my grandmother for my birthday.

8 His education is paid by Mike's father.

9 A test in English was written very well by me yesterday.

10 London is visited by many tourists every year.

Well, my parents are working and I am with my sister do cleaning."
"am" здесь лишнее, потому что речь идёт о действии, а "am" = "to be" - обозначает состояние.

"What with the cook, everybody in my family do it for themself."
"themself" говорить нельзя, нужно "themselves"
"What with the cook" - конструкция, не свойственная для английского языка, это просто дословно переведенная на английский фраза "что насчёт еды... ". Постарайтесь перефразировать как-нибудь попроще.

"For how days you going? Did you it in the past?"
Первое предложение построено неверно. Получается "На какие дни ты идёшь"
Нужно что-то вроде "How long are you going to do it?"
Во втором пропущен смысловой глагол:
Did you do it in the past?