Ex4:
1. They'll be at the seaside on Sunday.
2. Where will you be on Saturday?
3. I will be at school.
4. They will be in the countryside next month.
5. They will be at the seaside next week.
Ex5:
1. What's your address?
2. Where did you go last summer?
3. What do you do in the afternoon?
4. Where will you be this weekend?