在考研英语复试中，如果需要道歉，可以使用以下句子：
表达歉意
I sincerely apologize to you for my failing to meet the deadline.
I am indeed very sorry for the mistake I made, but I believe I had no intention to cause any inconvenience.
I am writing this letter to apologize to you for my carelessness during the exam.
解释原因
Unfortunately, due to a sudden family emergency, I was unable to attend the meeting.
My daughter had an accident, and I had to take her to the hospital, which made it impossible for me to be there.
提出补救建议
I would like to know if we could reschedule our meeting for another day.
I wonder if it is possible for me to make up for the lost time in some way.
Please forgive me for any inconvenience this may have caused.
再次表达歉意
once again, I am sorry for any inconvenience I have caused.
I sincerely apologize for my absence and hope you can understand my situation.
这些句子可以帮助你在复试中表达诚挚的歉意，并解释无法参加的原因，同时提出补救建议，以减轻可能产生的负面影响。