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 Iwasabouttoinformyouofthesuddenchange

練習題5.18K

問題詳情:

 Iwasabouttoinformyouofthesuddenchange

 I was about to inform you of the sudden change ______an unexpected visitor came.

A. because     B. before   C. when    D. unless

【回答】

C

知識點:連詞

題型:選擇題

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