Ответ:

Задание 1:

1. b.
2. c.
3. d.
4. c.
5. с.

Задание 2:

1. They played football at the institute.
2. She didn't write emails.
3. Did you speak English?
4. My mother didn't like fish.
5. Did Ann have any friends?
6. His brother worked in an office.
7. Did they water the flowers every 3 days?
8. His wife didn't ride a motorbike.
9. Did Elizabeth drink coffee?

Задание 3:

1. Who bought an old painting last week?
2. What did The Greens buy last week?
3. When did The Greens buy an old painting?

1.  правильно.
2. What did Da Vinci invent in the 15th century?
3. When did Da Vinci invent a helicopter?

Объяснение:

К заданию 1: чтобы понять в чем ошибки, переведи предложения и слова.

К заданию 2: выучи структуру построения Past Simple.

К заданию 3: тоже самое, что и к заданию 2.