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It would be _____ a risk to let the child go to school by himself.

A. following  B. passing  C. running    D. carrying

C. running 


解析:

run(take) a risk 冒風險:You are running a big risk in trusting him.(你信任他是冒極大的風險。) by oneself(=alone)單獨,獨立地。

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E
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