Wang Hua is said a new computer program recently but I don’t know when she will finish it

问题补充：

Wang Hua is said a new computer program recently, but I don’t know when she will finish it.

A. to design

B. to be designing

C. to have been designing

D. to have designed

答案：

A. to design

B. to be designing

(答案→)C. to have been designing

D. to have designed

解析：考查非谓语动词。根据句意及时间状语recently，可知用不定式的完成进行时。句意：据说王华最近正在设计一种新的电脑程序，但我不知道她生命时候完成它。