If he had not been taken good care of, he would not have recovered so quickly.
如果他不曾受到好照顾﹐不会恢复的这么快。
He called to see if an elderly patient had recovered from an illness.
他去探访一位老年病人,看看他是否已经痊愈。
If he had taken the doctor's advice, he might have already recovered from his illness.
如果他听从了医生的建议的话,他的病可能已经好了。
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