________dollars will go into the buildingA some dollars C a million of 两个选项都不行,为什么

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________dollars will go into the building
A some dollars
C a million of 两个选项都不行,为什么

不能加of,应该是a million dollars 或 millions of dollars

A,dollars与dollars重复
C,用millions of dollars,或者a million dollars就不要of了