听短文，完成下面的句子。
注：Stockholm 斯德哥尔摩；budget travelers 囊中羞涩的旅游者
1. Tourists who prefer big cities can visit Stockholm, Sweden's ______ city.
2. People can visit ______ in Stockholm to learn about local history and culture.
3. Tourists who enjoy nature can find many ______ activities to do in Sweden.
e. g. They can go swimming or hiking or just relax on the beach in summer and
go skiing or ice-skating in winter.
4. Budget travelers can stay at a youth hostel and share a room with others for very ______ money.
5. The main idea of this passage is ______.
