Faraday gave most of his money to the poor. When he grew old he did not have enough mone

问题补充：

Faraday gave most of his money to the poor. When he grew old, he did not have enough money left to live on.

A. on

B. away

C. by

D. of

答案：

A. on

(答案→)B. away

C. by

D. of

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