阅读下面短文，掌握其大意。然后从各题所绘的A、B、C、D四个选项中选出最佳答案。
B
Today is Sunday. Mike and Peter 1 go to school. Listen! They are talking about the life 2 in the room.
"3 will the world be like" asks Peter. "I think that the world will be a 4 place to live in. And we will 5 machines and robots at home. They will help us do lots of 6." says Mike.
"The robots will help 7 cook dinner, clean the houses and 8 the old people. I think there will 9 a kind of medicine (药) and it can make me 10 more than 100 years ," Peter says.
"What will you do then?" asks Mike.
"Then I will take my great – grandchildren to the moon," says Peter. "The moon? I will go to the Mars (火星) with my wife ," says Mike.
