Thetimehehasdevotedinthepasttenyears       thedisabledi...

问题详情：

The time he has devoted in the past ten years        the disabled is now considered       of great value.

       A．to help; being                                       B．to helping; to be

       C．to help; to be                                       D．helping; being

【回答】

知识点：非谓语动词

题型：选择题