Recentlypeoplehavemadegreatprogressinusing 國語站 題庫 1.17W 大中小設置文字大小 問題詳情: Recently people have made great progress in using ____ power of nature to produce____ electricity. A. a; the B. /; / C. the; / D. a; an【回答】C知識點:冠詞題型:選擇題 TAG標籤:#