Joseph off at the airport Sally finished her work earlier.A. Having seenB. SeenC. To seeD

问题补充：

Joseph off at the airport, Sally finished her work earlier.

A. Having seen

B. Seen

C. To see

D. To be seen

答案：

A. Having seen

B. Seen

(答案→)C. To see

D. To be seen

解析：考查非谓语动词.句意:为了去给约瑟夫在机场送行,萨利早早地结束了她的工作.不定式作目的状语表示具体的将要进行的动作,选项D表示被动动作,结合语境可知选C.