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Jim is so careless. He      my glasses and pens      the floor when he walked past my desk just now.
A.turned; overB.knocked; onto
C.knocked; overD.turned; onto
答案:B
试题分析:句意:吉姆是如此的粗心,他把我的书和钢笔碰到了地面上,当他刚才走过我的课桌的时候。knock onto表示撞到某人或某物,结合语境可知选B。
考点:考查动词短语辨析