On my way home.I saw a policeman the old man cross the road．( )A．helpsB．helpingC．helpedD．to help 题目和参考答案——青夏教育精英家教网—

题目内容

2．On my way home，I saw a policeman ______ the old man cross the road．（　　）

A．

helps

B．

helping

C．

helped

D．

to help

分析在我回家的路上，我看到一个警察正在帮老人过马路．

解答答案：B
see sb．doing sth．看到某人正在做某事，see sb do sth．看到某人做了某事，强调动作的全过程（要注意这里的do是省略to的不定式）结合句意：我看到一个警察正在帮老人过马路，应该用see sb．doing sth；故选B．

点评本题考查的是动词的固定搭配，理解句意并熟记固定用法是解答本题的关键．

练习册系列答案

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