At first I regretted them to stay, but we soon became great friends. A. to invite B. invitedC. to have invited D. inviting 题目和参考答案——青夏教育精英家教网—

题目内容

9. At first I regretted them to stay, but we soon became great friends.

A. to invite B. invited

C. to have invited D. inviting

9. D考查非谓语动词。句意：起初，我后悔邀请他们留下来，但是我们很快成了好朋友。regret doing sth后悔做了某事； regret to do sth遗憾（将要）做某事。根据句意可知，invite这个动作已经发生，故regret后应该用动名词，故选D。

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