补全对话，根据对话内容，在空白处填上适当的句子。 A: Haven't seen you for months, Hans! B: Oh, Nancy! It's you! Yes, 1 A: England? For what? B: 2 A: I thought you were traveling or visiting your relatives. 3 B: I mainly stayed in London learning English, and traveled to some of other cities, such as Manchester, Liverpool and so on. A: 4 For a month? B: Six weeks in fact. I spent four weeks studying and two weeks traveling. A: 5 It's always foggy, isn't it. B: Oh, it used to be. When I was there, it was always sunny.