1 . I must _______ (道歉) for not being able to meet you.
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2 . First of all, let's look at seven tips for____________ (道歉)sincerely and successfully!(根据汉语意思填空)
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3 . Wang Zheng a_________ (道歉)to Chen because he couldn't offer her more money.(根据汉语提示单词拼写)
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