Itissaidthatpotatochips___bymistakeaboutahundredyearsago.（）A．inventB．inventedC．_刷题宝

题干

It is said that potato chips ___ by mistake about a hundred years ago. （）

A．invent

B．invented

C．are invented

D．were invented

上一题下一题 0.99难度选择题更新时间:2019-08-11 05:01:51

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