Pleasantmusicisoftenplayed

問題詳情：

 Pleasant music is often played ____ classes to make students refreshed and relaxed for a while．

A. between           B. among              C. over                        D. after

【回答】

A課間播放愉快的音樂使學生清醒和放鬆。between兩者之間，指兩節課之間。

知識點：介詞

題型：選擇題