習題庫 MrGreeniswriting theblackboard.A.in B.onC.at 來源:國語幫 2.08W 問題詳情:Mr Green is writing the blackboard.A.in B.on C.at【回答】B知識點:介詞和介詞短語題型:選擇題 onC.at theblackboard.in MrGreeniswriting