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]
When its on, dont carry a cell phone close to the body Examples: dont carry a cell phone in your pocket, dont tuck a cell phone into your bra. Even when youre not using your cell phone, it emits radiation while its on.