Maxoften

問題詳情：

Max often ______our books and pens ______the floor, when he ______our desks.

              A. knocks, onto; walks past        B. knock, onto; walks passed

              C. knocks, off; walks past          D. knocks, off; walks passed

【回答】

A

知識點：動詞和動詞短語

題型：選擇題