答案:A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实,不定式后用原形即可。而C为现在完成时,发明为点动词一般不用完成时,且此处也不强调对现在的影响,因此不选C。
Seem, appear,be said,be supposed, be believed,be thought,be known, be reported,hope, wish, desire,want, plan, expect, mean…
The book is believed to be uninteresting.
believe, expect, intend, like, love, mean, prefer, want, wish, undrstand
We didn't expect there to be so many people there.我们没料到会有那么多人在哪里。
注意 : 有些动词需用as 短语做补语,如regard, think believe, take, consider.
We regard Tom as our best teacher.我们认为汤姆是我们的老师。
Mary took him as her father .玛丽把他当作自己的父亲。
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