WhenItrytounderstand 國語站 題庫 2.89W 大中小設定文字大小 問題詳情:When I try to understand _____ that prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes. A.why it does B.what it does C.what it is D.why it is【回答】C知識點:強調句題型:選擇題 TAG標籤:WhenItrytounderstand #