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Ourgovernmenthastakensomemeasurestoovercomethelackofelectricity,butitmaytakesometimewehaveenoughpower.[]A.sinceB.afterC.unlessD.before
题目详情
| Our government has taken some measures to overcome the lack of electricity, but it may take some time ____ we have enough power. |
| [ ] |
| A. since B. after C. unless D. before |
▼优质解答
答案和解析
| D |
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