Weknowthatasmileisusuallyasignthatpeoplefeelfriendlyan... 國語站 題庫 1.23W 大中小設置文字大小 問題詳情: We know that a smile is usually a sign that people feel friendly and happy, but _____ we don’t know who the new person is? A. what if B. how come C. what about D. why not【回答】A知識點:固定句型題型:選擇題 TAG標籤:#