1. I'm sorry that... [ex. I was so rude yesterday] 2. It's my fault. (= I am taking responsibility for the problem) 3. Oops, sorry. (for very small problems) 4. I should have... [ex. called you and told you I'd be late] 5. (formal) I apologize for... [ex. the delay]
Responsible for the majority of snake related deaths in the world, this viper uses a hemotoxin similar to that of the boomslang. Unfortunately most of the bites occur in areas that lack modern medical facilities so the victims slowly bleed to death over the course of several weeks.