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?