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高考◆英语◆四川省題庫下載題庫

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47. If you want to use energy free, you have to_____.
(A) sign an agreement with the government
(B) pay around £14,000 for the equipment
(C) sell the roof to some energy companies
(D) keep the roof unchanged for within 25 years



47. If you want to use energy free, you ..-阿摩線上測驗