题文
The time he has devoted in the past 10 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 |
推荐试卷
The time he has devoted in the past 10 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 |
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