21. Monica _______ the floor, _______ the music and _______ the sandwich at the same time.(A) mopped
問題詳情
21. Monica _______ the floor, _______ the music and _______ the sandwich at the same time. (A) mopped, enjoyed, ate (B) mopped, enjoied, ate (C) moped, enjoyed, ate (D) mopped, enjoyed, eated