Hello!Emma,have you ever been to Qingdao?

Hello!Emma,have you ever been to Qingdao?
B:Yes,I have.A:How many times have you been there?B:（1）?A:Only once?When did you go there?B:Two years ago.A:（2）?B:Great!It is a very beautiful place.Especially the beaches and the waves.A:（3） B:Yes.I have.I went swimming in the sea every day.Sometimes we went boating.A:Have you done any other water sports?B:（4）?A:Surf?How did you learn to surf?B:I learned it from my uncle before I came here.A:（5）?
第一空填it's my first time 第二空how do you like there第三空have you gone to swim第四空when did you learn it第五空do you like it
请大神帮忙指出哪错了,为什么