【题目】Wang Hua is said ______ a new computer programme recently, but I don’t know when she will finish it.
A. to desogn B. to be designing
C. to have been designing D. to have designed
在线课程【答案】C
【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。