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.