Their business came from a few big publishers, all of whose books they bound.
他们的生意来自几家大出版社，这些出版社所有的书都由其装订。
Whose books are these on the desk?
桌上的书是谁的？
这些书是谁的?。
那些书是谁的？
What's all this? Whose books are these, yours?
这些都是什么呢？这些是谁的书，你的吗？
Whose are these books on the desk?
桌上的书是谁的？
那些书是谁的？
Whose are these reference books?
这些参考书是谁的？
These books are mine, then whose are those?
这些书是我的，那些书是谁的？
His father is a professor, in whose study there are a lot of books.
他父亲是个教授，书房里有很多书籍。
His father is a professor, in whose study there are a lot of books.
他父亲是个教授，书房里有很多书籍。
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