问题描述：
三道英语不定式题目
1.He happened____(telephone)when I went in.
2.The girl pretended ___(listen)when the teacher looked at her.
3.Charles Babbage is generally considered ___the first computer.
A.TO have invented B.inventing C.to invent D.having invented
1.He happened____(telephone)when I went in.
2.The girl pretended ___(listen)when the teacher looked at her.
3.Charles Babbage is generally considered ___the first computer.
A.TO have invented B.inventing C.to invent D.having invented
问题解答：
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