句型转换。 1. I think the most helpful invention is the light bulb. ( 对画线部分提问) ______ do you think______the most helpful invention? 2. I'd like to have a radio. (改为一般疑问句) ______you______ to have a radio? 3. He wants to have a computer because he likes playing games .(对画线部分提问) ______ ______he______ to have a computer? 4. We must repair the computer now. (改为被动语态) The computer______ ______ ______now. 5. I often hear her sing in the next room. (改为被动语态) She______ often______ ______sing in the next room.