( )taken good care of，he would not have recovered so quickly．
A、
Had not he been
B、
Had he been not
C、
Had he not been
D、
Had he been
【正确答案】
C
【答案解析】
解析：考查虚拟条件句中的部分倒装，含有were，should或had的虚拟条件句，可以省略if，把条件句倒装，结构是Were(Should，Had)+主语。
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