Charles baggage is generally considered ____the first computer.这是备选答案.标准答案是c A.to invent B.inventing C to have invented D.having invented想问问为什么,我个人认为是d

Charles baggage is generally considered ____the first computer.这是备选答案.标准答案是c A.to invent B.inventing C to have invented D.having invented想问问为什么,我个人认为是d
Charles baggage is generally considered ____the first computer.
这是备选答案.标准答案是c A.to invent B.inventing C to have invented D.having invented
想问问为什么,我个人认为是d

Charles baggage is generally considered ____the first computer.这是备选答案.标准答案是c A.to invent B.inventing C to have invented D.having invented想问问为什么,我个人认为是d
be considered to do sth是一个固定结构
然后又是过去完成式
所以用have done sth