从选项中选出正确的句子组成对话。 Wendy: Hi, Bruce, (1)_______. Bruce: Yes. I'm just back from London. Wendy: What do you think of London? Bruce: (2)_______. Wendy: So, there must be a lot of people. Bruce: Yes, in the street (3)_______. Wendy: How do you find people there? Bruce: (4)_______. Wendy: That's great. (5)_______. Bruce: Of course, I enjoyed myself a lot.