【问】 No one me saw him.
 除了我之外谁也没有看见他。
 从上面的句子看，介词but和介词except是可以互换的。这种说法对吗?
 【答】 使用介词except的限制较少。使用介词but则有许多限制。介词but只能用在no，none，all，nobody，anywhere，everything，everyone以及who，what，where之后：
 1. He seldom talked of anything but painting.(Maugham)
 除了绘画他很少谈论别的。
 2. Nobody else but Robert could ever say such a thing.(Mansfield)
 除了罗伯特没人能说这样的话。
 3. No one but myself knows what really happened.(GPU)
 只有我知道实际上发生了什么事。
 4. Everyone but me was tired. (CGEL)
 除了我，大家都累了。
 5. All but he had fled.
 除了他之外，大家都逃了。
 6. None but the brave deserves the fair. (Prov)
 只有勇敢者才配得上美人。
 7. Who but a fool would do such a thing? (Palmer)
 除了傻瓜，有谁会做这样的事呢?
 请做下面的英语试题：
 “Are you done with the book I gave you?”
 “Not quite. I’ve read all__the last chapter.”
 A. but B. until C. just D. yet(TOEFL，70. 6)