No sooner _________ to school _________ the bell for the first class began this morning.
23. He did as much as he _____ her.
22. The town has changed a lot _____ what it was before.
II、单项填空(共20分)21. In the center of the room stood a table with a _____ lamp on it, so it is very bright in the room.
20. They _____the battle but lost many men.
19. It’s quite an informal gathering ; you needn’t ______for it .