He has devoted his life ______ disabled people.A、to helpingB、to helpC、helping

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问题 He has devoted his life ______ disabled people.

选项 A、to helping
B、to help
C、helping
D、help

答案 A

解析 devote．．．to sth．意为“把……奉献给”，to是一个介词，后跟名词或-ing形式。

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