1)Were your parents at home last night?

2)Was your best friend sad yesterday?

3)Were you tired on Monday morning?

4)Was maths lesson last week easy?

5)Was your favourite programme on TV last night?

6)Were you in the park yesterday?

Ответ:

2 Was your best friend sad yesterday?

3. Were you tired on Monday morning?

4. Was maths lesson last week easy?

5.Was your favourite programme on TV last night?

6.Were you in the park yesterday?

Объяснение:was употребляется с 'I', "He", 'she', "it", остальное с were