从方框中选择合适的句子补全对话。
Li Hong: Mum,
Mum: To Hangzhou?
Li Hong: Hangzhou is a very beautiful city.
Mum:
Li Hong: You can come, too. Mum! Mum!
Mum: Okay!
Li Hong: Thanks!

A. I can go. B. may I go to Hangzhou? C. I want to go there with my friends. D. I'm afraid not. E. But you are all too young.