Tom : Hi, Cathy. ___1__                                 
Cathy: I have to finish my project on the history of the Internet. What about you?
Tom : 2 If it’s fine, we’ll go camping. Would you like to join us?  Cathy: I’d like to, but the deadline for my project is next Monday.
Tom : What a pity!   3                                     
Cathy: Yes, please. Can you suggest any good reference books?
Tom : You may want to read Origins of the Internet and The Digital Future.
Cathy: I’m reading the two books.    4                        
Tom : Go to the Science Museum website, and you’ll find lots of up-to-date information.
Cathy: Good idea. Thanks for your help.
Tom :    5                                        

A．Never mind.	B．Don’t mention it.
C．Any other suggestions?	D．Will you come next time?

E.it depends on the weather          F.Anything I can do for you G.What are you up to this weekeed?