13. 두 사람의 대화 중 가장 자연스러운 것은?
- 1A: Do you know what time it is? B: Sorry, I’m busy these days.

- 2A: Hey, where are you headed? B: We are off to the grocery store.

- 3A: Can you give me a hand with this? B: OK. I’ll clap for you.

- 4A: Has anybody seen my purse? B: Long time no see.
