I can't tell you what she said. I've promised ________ it a secret. A.keep B.to keep C.keeping D.kep...
2022-09-11 18:48:50 40次 上海普陀区进华中学2018-2019学年六年级上学期第一次月考英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
I can't tell you what she said. I've promised ________ it a secret.
A.keep B.to keep C.keeping D.kept
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