Charles Babbage is generally considered the first computer. A. to invent B. inve
来源：网络
时间：
推荐文章
Charles Babbage is generally considered ________ the first computer.
A. to invent B. inventing
C. to have invented D. having invented
试题答案
C
不定式的完成式表示不定式本身的动作发生在谓语动词之前。如：We seem to have met each other before.我们似乎以前见过面。