--- Had we been more careful, the accident might not have happened. --- But we _____ at that time. A

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• The vegetables didn’t taste very good. They ____ too long. A．had been cookedB．were cookedC．had cooke
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• --- Could you tell me what he said just now?--- Sorry, I ______ what was going on outside.A．had tho
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• I used to drink a lot of tea but these days I _____ coffee.A．preferB．preferredC．have preferred D．am
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