中译英：由于我的亲人突然去世，接下来我必须请假处理事情，无法参加这次培训感到非常抱歉。

As one of my relatives has just passes away, I have to ask for leave to handle it. And I feel it so pity to be unable to take this training.

Due to the sudden death of my relative and I had to ask for leave to deal with things,so I was very sorry that I couldn't take part in this training.

Due to the sudden death of my loved ones, then I must take leave to deal with things and can not participate in this training are very sorry.

Because of my relatives died suddenly ,next I have to deal with things not to attend the training,I felt very sorry.