—Mustwekeepthewindow 國語站 題庫 2.87W 大中小設置文字大小 問題詳情:—Must we keep the window ___ all the time? —No, you don’t have to. ing open【回答】B知識點:動詞和動詞短語題型:選擇題 TAG標籤:Mustwekeepthewindow #