英语语法：关于一些既有名词形态,又有动词形态的单词,可否用其不同形态去表达同一种意思?
11年CET4翻译题(有改动）：校长关闭了学校并且什么也不解释
例1：The principal closed the school and explained nothing.
例2：The principal closed the school and didn't make any explanation.
例3：The principal closed the school without making any explanation.
例2句式是标准答案