题目内容
The firm was successfully run and________,he owed his success to the support of his friends.
A. looking back B. looked back
C. to look back D. when looked back
A
考查非谓语动词。“当回顾过去时”在句中作时间状语,因为look back与主语he之间为主谓关系而不是动宾关系,因此不能使用过去分词形式,而应用现在分词形式。
练习册系列答案
相关题目