11. 밑줄 친 부분에 들어갈 말로 가장 적절한 것을 고르시오.
A:Were you here last night? B:Yes. I worked the closing shift. Why? A:The kitchen was a mess this morning. There was food spattered on the stove, and the ice trays were not in the freezer. B:I guess I forgot to go over the cleaning checklist. A:You know how important a clean kitchen is. B:I’m sorry. _________________________
- 1I won't let it happen again.

- 2Would you like your bill now?

- 3That's why I forgot it yesterday.

- 4I'll make sure you get the right order.
