Ответ:

1. There was a big house in our street last year.

2. There were many students in our group last year.

3. There weren't many books in the library last month.

4. There wasn't a board in the room yesterday.

5. There was a TV set, a carpet, two armchairs, a sofa in my room two years ago.

6. There were ten exercise-books, pens, pencils and a record-book in the bookcase yesterday.

7. Was there a window in the classroom last week?

8. Was there a dentist in a hospital yesterday ?

9. There were no books on the floor yesterday.

10. Were there people at the cinema yesterday?

1. There was a big house in our street last year.

2. There were many students in our group last year.

3. There were not many books in the library last month.

4. There was not a board in the room yesterday.

5. There was a TV set, a carpet, two armchairs, a sofa in my room two years ago.

6. There were ten exercise-books, pens, pencils and a record-book in the bookcase yesterday.

7. Was there window in the classroom last week?

8. Was there a dentist in a hospital yesterday ?

9. There were no books on the floor yesterday.

10. Were there people at the cinema yesterday? ​

Объяснение:

Если предмет один, то мы употребляем THERE WAS

Например, there was a chair in the room- в комнате был стул.

Если предметов два и более, то употребляем THERE WERE

Например, there were two tables in the room - в комнате было два стула .