句型转换 1. David likes watching basketball matches on TV. (改为否定句) David ______ ______ watching basketball matches on TV. 2. Betty often buys things on the Internet. (改为一般疑问句并作肯定回答) ______ Betty often ______ things on the Internet? Yes, she ______ . 3. I usually go to school at seven o'clock. (对划线部分提问) ______ ______ do you go to school at seven o'clock? 4. My father uses the computer to make travel plans. (对划线部分提问) ______ ______ your father ______ the computer to ______ ? 5. Click'save' ,you can save the document. (对划线部分提问) ______ can I save the document?