问题

The time he has devoted in the past ten years _____the disabled is now considered ____of great value. [ ]
A: to help; being
B: help; to be
C: to helping; to be
D: helping; being
B: help; to be
C: to helping; to be
D: helping; being
正确答案是:
同类题型
When he unwrapped the box, he saw a large diamond __________ like a rose.[ ]
your strength, you have got to know who you are and listen to yourself before doing anything else.
He worked so hard that________he made himself ill[ ]
When I passed the entrance examination, my family _______ me ____ my success.