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. When did you buy it? B. It’s much better than before. C. When does it start? D. Good idea. E. I won’t miss it! F. It will last two days G. How much are the tickets?

A: Lucy, are you going to the School Science Show?
B: Yes, I plan to.     
A: I saw the poster yesterday. It says the show starts on July 5^th.    
B: Oh, July 5^th and 6^th. It’s the first weekend of July.
A: Yes, and this time it will be open from 10:00 am to 6:00pm.
B: That sounds good. It will give more people the chance to enjoy it.   
A: Only $2 for students. The poster also says there are many new inventions to watch and try this time.
B: Great!    
A: So it is!
B: it must be very exciting.