He makes about $1000 every week.much is spent on books. A．of which B．in that C．a
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He makes about $1000 every week，much ______ is spent on books.
A．of which B．in that C．among whichD．of it
试题答案
A
解析:
定语从句补充完整为：much of the money is spent on books，所以用of which来引导这个定语从句。