句型转换。 1. Jack sends five emails to his friends every day. (对划线部分提问) ______ ______ emails ______ Jack ______ to his friends every day? 2. I sometimes play football with my friends after school. (对划线部分提问) ______ ______ ______ you ______ football with your friends after school? 3. They go to the park on Sunday. (改为否定句) They ______ ______ to the park on Sunday. 4. We often use a computer in our class. (改为一般疑问句) ______ you often ______ a computer in your class? 5. My friends usually play computer games at the weekend. (对划线部分提问) ______ ______ your friends usually ______ at the weekend?