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1.I remember you mentioned the same thing on a __________(ÏÈǰµÄ) occasion.
´ð°¸:previous
2.I’m not feeling very well today -__________ (·ñÔò) I would do it myself.
´ð°¸:otherwise
3.Do you believe that there’s a __________ (ÁªÏµ,Áª½á) between smoking and heart disease?