Ex. 3

1. They went to the theatre yesterday .(-,?)

2. He played football yesterday. ( - , ?)

3. My friend had lunch at 2 o’clock yesterday. (-,?)

4. She swam in the sea last summer. (-,?)

1 - They didn't go to the theatre yesterday

? Did they go to the theatre yesterday?

2 - He didn't play football yesterday

? Did he play football yesterday?

3 - My friend didn't have lunch at 2 o'clock yesterday

? Did my friend have lunch at 2 o'clock yesterday?

4 - She didn't swim in the sea last summer

? Did she swim in the sea last summer?