Question

【题目】句型转换
（1）You must keep the information on computers. （改为被动语态）
The information on computers.
（2）The company has printed millions of the books. (改为被动语态）
Millions of the books by the company.
（3）I prefer watching TV at home to going shopping on Sundays. (改为同义句)
I watch TV at home go shopping on Sundays.
（4）The room is full of people. (改为同义句)
The room people.
（5）finished, be, at, should , homework, once , your (连词成句)

Answer 1

【答案】
（1）must；be；kept
（2）have；been；printed
（3）prefer；to；rather；than
（4）is；filled；with
（5）Your homework should be finished at once.
【解析】（1）情态动词的被动语态基本结构为：情态动词+be+过去分词，所以答案是must be kept。
（2）现在完成时被动语态结构为：has/have+been+过去分词，所以应该填have been printed。
（3）prefer doing to doing=prefer to do rather than do，所以答案是prefer to；rather than。
（4）be full of=be filled with充满，所以答案是：is filled with。
（5）句子的基本结构：主语+谓语，主语是名词充当，故your homework作主语，谓语由动词充当，所以应为should be finished.at once是词组，作状语放在句尾。所以该句应为：Your homework should be finished at once.。