把下面句子变成变动语态。 1. We use the computer to search for information. The computer _____ _____ to search for information. 2. We used the computer for playing games. The computer _____ _____ for playing games. 3. Jackson designs this CD-ROM. This CD-ROM _____ _____ by Jackson. 4. We call it printer. It _____ _____ printer. 5. They learn English on the radio. English _____ _____ on the radio. |