【題目】—Do you know who invented lights?

—Yes, they by Edison.

A.inventedB.are inventedC.were inventedD.was invented

【答案】C

【解析】

句意：——你知道誰(shuí)發(fā)明了電燈嗎？——是的，它們是被愛迪生發(fā)明的。

A. invented發(fā)明，一般過(guò)去時(shí)態(tài)；B. are invented被邀請(qǐng)；一般現(xiàn)在時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)；C. were invented被邀請(qǐng)，一般過(guò)去時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)；D. was invented被邀請(qǐng)，一般過(guò)去時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)，單數(shù)。電燈的發(fā)明已成為過(guò)去，這里是一般過(guò)去時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)，主語(yǔ)是復(fù)數(shù)，這里用were done的形式。根據(jù)句意，故選C。

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