用所给词和短语的适当形式填空

Tom and Fred are  1  the year 2015.   “What will the world   2  in the year 2015?” asks Tom.  “I don’t know.” Says Fred.  “What do you think?”   “Well,  no one knows, but it is   3   to guess，” “ In the year 2015   4  will carry a pocket computer .The computer will give people the answers to all the questions. We shall all have telephones in our pocket, too, and we’ll be able to talk to our friends   5  . Perhaps we’ll be able to see them at the same time.”

“A lot of people will live and work under the sea. Perhaps there’ll be big towns, factories, and farms   6 , too.”  “

“Machines will do most of the   7 , so people will have more holidays . Perhaps they’ll work   8  two or three days a week. They will be able to fly to the moon by spaceship and spend their holidays there.

“I am  9  the year 2015. I hope to fly to the moon.” Says Tom. “And I hope I’ll be able to live under the sea,” says Fred. “Won’t it be interesting? Just  10 a fish.”

CPU对外部设备的控制方式有：　　Ⅰ．循环测试I/O方式　　Ⅱ．中断处理方式　　Ⅲ．直接内存存取方式　　Ⅳ．通道方式

A．Ⅰ，Ⅱ和Ⅳ

B．Ⅱ，Ⅲ和Ⅳ

C．Ⅰ，Ⅱ和Ⅲ

D．全部正确