Hepaidforaseat,whenhe______haveenteredfree.A.could B.... 國語站 題庫 2.47W 大中小設置文字大小 問題詳情： He paid for a seat, when he ______ have entered free.A. could B. would C. must D. need【回答】A知識點：虛擬語氣與情態動詞題型：選擇題 TAG標籤：#
