Вулкан Кракатау находится в Северном (1) или в Южном (2) полушарии? Пустыня Калахари находится на севере (1) или на юге (2) Африки?

1. His father worked all day yesterday.
Отрицание: His father didn't work all day yesterday.
Вопрос: Did his father work all day yesterday?

2. She answered the letter from her friend.
Отрицание: She didn't answer the letter from her friend.
Вопрос: Did she answer the letter from her friend?

3. We cooked a good dinner yesterday.
Отрицание: We didn't cook a good dinner yesterday.
Вопрос: Did we cook a good dinner yesterday?

4. I prepared breakfast myself.
Отрицание: I didn't prepare breakfast myself.
Вопрос: Did I prepare breakfast myself?

5. We boiled meat and fried fish and potatoes.
Отрицание: We didn't boil meat and fry fish and potatoes.
Вопрос: Did we boil meat and fry fish and potatoes?