Personal computers in 1976. It has changed the whole world.A. have inventedB. were inven

发布时间：2020-08-22 16:17:06

Personal puters      in 1976. It has changed the whole world.
A. have invented
B. were invented
C. is invented
D. invented

网友回答

A. have invented
(答案→)B. were invented
C. is invented
D. invented
解析：根据in 1976可知，本句应该是过去时，故排除AC；本句的主语是Personal puters“个人电脑”，故应该用被动语态were invented。本句的意思是“个人电脑发明于1976年。”所以本题选B。
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