延伸与提升 补全对话。（其中有两项多余） A:Good morning,sir.Can I help you? B:1. 4:Which country would you like to visit? B:2. I'm too tired and just want to relax. A:Maybe you can spend your vacation in Switzerland.3. B:But it's too cold.4. A:What about Australia?There is a lot of sunshine there all the year round. B:5. And I can practice my English as well. 导航页导航页 延伸与提升 补全对话。(其中有两项多余) A:Good morning, sir. Can I help you? B:1. A:Which country would you like to visit? B:2. I’m too tired and just want to relax. A:Maybe you can spend your vacation in Switzerland.3. B:But it’s too cold.4. A:What about Australia? There is a lot of sunshine there all the year round. B:5. And I can practice my English as well