题目内容
--What happened to Mr. Smith early this morning?
--Oh, he was seen __ down and the driver __ away.
A. knock; drive B. knocking; driving
C. knocked; drove D, to knock; driven
C
解析:Mr. Smith是被人看到被车撞倒,所以作宾补的应是过去分词形式。后一分句由and连接,独立成句,所缺成分作谓语动词。
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