1. So sudden _________ that the enemy had no time to escape.［2009山东, 27］
A. did the attack B. the attack did
C. was the attack D. the attack was
2. New technology was used in teaching. As a result, not only __________, but students became more interested in the lessons.
［2009宁夏, 31］
A. saved was teachers’ energy
B. was teachers’ energy saved
C. teachers’ energy was saved
D. was saved teachers’ energy
