16. (单选题) These students ________ the cause of helping those who are not able to help themselves.( )(本题3.5分) A、 are committed to B、 are at their best C、 let on D、 break out

16. (单选题) These students ________ the cause of helping those who are not able to help themselves.( )(本题3.5分)
A、 are committed to
B、 are at their best
C、 let on
D、 break out

出自：赤峰学院- 高级英语I(专升本)

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