習題庫 單項選擇題Theschooltripis 來源:國語幫 3.13W 問題詳情:單項選擇題The school trip is _____ February 28th.A. on B. in C. at D. of【回答】A知識點:介詞和介詞短語題型:選擇題 選擇題 Theschooltripis 單項