(   ) 1. —Do you know when and where computers        ?

—Yes,about 1946 in America.

A. invent           B. invented

C. are invented     D. were invented

1.D根據(jù)about 1946可知考查過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)。

題目來(lái)源：2015仁愛(ài)英語(yǔ)同步練測(cè)考九年級(jí)英語(yǔ)全一冊(cè)仁愛(ài)版 > Topic 1 When was it invented?

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