阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话，

A. What a wonderful experience! B. Did she tell you when she would be back? C. She has gone to London. D. What a pity! E. She has been to London several times. F. Because her grandparents live in London. G. It's really nice.

A: Why doesn't Kitty come with us to the park?

B:

A: Has she been to London before?

B: Yes,  

A:  Why has she been there so many times?

B:  She goes to visit them and spends her holiday there.

A:  I hope I can go to England someday.  

B: She said that she would stay there for about three weeks.