1.I think I’ll explore the caves.
2.He doesn’t know. He may take a trip around the islands.
3.Phuong, Tuan anh Hoa may build sancastles on the beach.
4.My family and I will swim in the sea.
5.They’ll be at the seaside on Sunday.
6.She’ll visit the islands on Monday.
7.Where will you be on Saturday?
8.I think I and Mai will be at school.
9.The boys will be in the countryside next month.
10.I think I’ll visit the mountains tomorrow.