---Iregret________youthatJohnhasbeenfired.---Icanhardlybelievemyear

发布时间：2020-08-13 02:19:17

--- I regret ________ you that John has been fired. --- I can hardly believe my ears. He is such a fine workerA.tellingB.having toldC.to tellD.to have told

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C解析考查非谓语动词。regret doing 后悔做过某事；regret to do 遗憾地做某事。这里是后者，故选C。
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