阅读短文，根据上下文意思，从两个选项中选择适当的单词。

Tom went to visit his grandparents 1his parents by plane last holiday. His grandparents2in a beautiful city in Hainan. Tom and3aunt stayed there for two weeks. Every morning Tom4to see the blue sea. Sometimes he took some photos. Sometimes he went 5on a small boat. He had a good time in Hainan.