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If I were you, I would study hard. £¨¿Éµ¹×°£©
If it rained, I would not be here now.
1.1 ÓëÏÖÔÚÊÂʵ²»Ò»Ö£¬Æä¾äÐÍΪ£º
If +Ö÷Ódid£¬Ö÷Óshould£¨could, would, »òmight£©£«do.
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If I were you, I would study hard. £¨¿Éµ¹×°£©
If it rained, I would not be here now.