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Themobilephone    in1973. A.invents B.isinvented C.inve...

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問題詳情:

Themobilephone    in1973. A.invents B.isinvented C.inve...

The mobile phone     in 1973.

A. invents  B. is invented  C. invented  D. was invented

【回答】

D

知識點:動詞語態

題型:選擇題