Mary: How do you like the idea of having a picnic this Saturday?John: Wonderful. But _____（56）?Mary: What about the Blue Mountain? It's quite cool there. John: That's a good idea. Shall we invite Michael and his girlfriend to go with us? Mary: Sure! It would _____（57）to have them with us. John: Good! _____（58）?Mary: You could buy some drinks and sandwiches. And some fruit, too.John: OK. _____（59）?Mary: How about 8 o'clock in the morning? It takes about two hours to get there.John: OK. I'll call Michael and tell him about our plan. We sure will _____（60）.57._____.