19 I must apologize for ___ ahead of time.

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19 I must apologize for ___ ahead of time.
That's all right
a.letting you not know b not letting you know c letting you know not d letting not you know 需要详细分析

B
有一个语法知识你可能不太了解,NOT 对V－ING 的否定是应该放在他们的前面,其他用正常的陈述语序．知道这一点是不是就觉得很简单了?

19 I must apologize for ___ ahead of time. I must apologize for __________ ahead of time, 英语翻译I must apologize for not letting you know ahead of time. 【高二英语】I must apologize for ____ ahead of time.( ) A.letting I must apologize for not letting you know ahead of time.请翻译一 I must apologize for________ ahead of time.” “It doesn't 英语翻译1.i must apologize for not letting you know ahead of tim 选什么：I must apologize for___ahead of time. You should apologize for ___ on time. I must apologize for my mistake这 I must apologize for interrupting you.可以改为“I must apologize _I must apologize for__ahead of time._that is all right.