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WehavebeenexpectingRio2016Olympics

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問題詳情:

WehavebeenexpectingRio2016Olympics

We have been expecting Rio 2016 Olympics_______ the Olympic flame(聖火) was lit.

A. if                        B. unless                        C. since                   D. though

【回答】

C

知識點:連詞

題型:選擇題

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