____ I understood very little French, I couldn’t follow their conversation.
| A．Although | B．Unless | C．Since | D．Before |
They had their electricity __________ because they didn’t pay the bill.
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The telephone system _________ during the big earthquake in Sichuan Province.
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It was such an __________ performance that it ___________ all the audience.
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This picture was taken a long time ago. I wonder if you can __________ my father.
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I saw Bob play the piano at John’s party and on that __________ he was simply brilliant.
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