Task 3.
1)I will write a lot of letters-Letters will be writen by me.
2)She will not do the exercises-The exercises will not be done by her.
3)I will visit my grandma-Grandma will be visited by me.
4)They will not cook dinner-Dinner will not be cooked by them.
5)Will they help you?-Will you be helped by them?
Task 4.
1)We are writing a lot of letters-Letters are being written by us.
2)She is not doing the exercises-The exercises are not being done by her.
3)I am visiting my grandma-My grandma is being visited by me.
4)The are not cooking dinner-Dinner is not being cooked by them.
5)Are they helping you?-Are you being helped by them?
Объяснение:
2. She could (was able to) cook two years ago.
3. They could (were able to) play football last year.
4. Are there many interesting books is your room?
5. Yestarday there was no milk at home.
6. Did you go to school yesterday (хотя лучше сказать "Have you been to school yesterday?")
7. Yesterday Mary hasn't done (didn't do) her homework.
8. Did you celebrate Halloween last year?