The time he has devoted __the disabled is now considered __of gread value选项 a.to help,being b.to helping,to be c.help,to bed.helping,being

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The time he has devoted __the disabled is now considered __of gread value
选项 a.to help,being b.to helping,to be c.help,to be
d.helping,being

a.to help
另外 gread value 应该是 great value

选a