完成句子，使改写后的句子完整，并与原句意思相符，注意每空只填一个单词。 1. A computer is more useful than a VCD. A VCD isn't ______ useful ______ a computer. 2. John left school after he finished his homework. John ______ leave school ______ he finished his homework. 3. What does your father do? What is your ______ ______? 4. How clever the boy is! ______ ______ clever boy he is! 5. I'm a doctor. He's a doctor, too. ______ he______ I ______ doctors.
