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2016年卫生类职称英语考试句型：

Hardly/Scarcely/Rarely +had +主语＋done…when /before + 主语＋did

请比较：主语＋had +hardly/Scarcely/Rarely + done…when /before +主语＋did.

Hardly had she had supper when she went out. 她一吃完晚饭就出去了。

请比较：She had hardly had supper when she went out.