Charles Babbage is generally considered to _______ the first computer.A．to inven

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Charles Babbage is generally considered to _______ the first computer.

A．to invent

B．inventing

C．to have invented

D．having invented

答案

解析

考察不定式用法。Consider sb to do/be…认为某人…；发明了第一台电脑是一个已经完成的事情，所以使用完成式to have done.

举一反三

Please excuse me for _____ in without ______．

A．coming, asking	B．coming, being asked
C．to come, asking	D．to come, being asked

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I remember _________ the doors when I left the house, but I forgot _______ you about that so that you didn’t need to worry．

A．to lock; to tell	B．locking; forgetting
C．locking; to tell	D．to lock; telling

题型：不详难度：| 查看答案

The tower ________ now in the distance will be completed in two months．

A．being built

B．to be built

C．built

D．having been built

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___________ that he was in great danger, Eric walked deeper into the forest．

A．Not realized

B．Not to realize

C．Not realizing

D．Not to have realized

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—What do you think made the girl so depressed？
—_____ with her boyfriend．

A．As she broke up

B．Break up

C．Breaking up

D．Because of breaking up

题型：不详难度：| 查看答案