Which type of house would you like (51) in the future? B Well, maybe a hi-tech house on the ocean. It will be (52) by tall trees and blue sea. A How can you produce electricity? B We can produce all the energy because we can use (53) . A It will be very friendly to the environment. How can you go to school? B There will be a helicopter on the roof so that (54) . A Can you control your house when you’re away? B Yes, we can have our smart phones (55) our cooker, and robots (56) such as cleaning the floors, watering the flowers, and so on. A How about entertainment? B I think we will have a home theater so that we can (57) ,or even play sports with your virtual friends. A Will your father have to go to work? B I don’t think so. People can have offices at home so that they (58) from home. They can use (59) to contact their manager. A And do you think we will live (60) planets in the future? B Everything can happen, but maybe it will be very different.