题目内容
| Some scientists believe that some day the sea will be used ________ electric power. A. to make B. to making C. to be made D. being made |
| A |
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题目内容
| Some scientists believe that some day the sea will be used ________ electric power. A. to make B. to making C. to be made D. being made |
| A |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||