26. Let's call it a day. 今天到此为止吧!

　　A: Let's call it a day. I am so tired.

　　B: All right!

　　27. Not again! 不会吧!

　　A: Everyone's late.

　　B: Not again!

　　28. Knock it off! 住手!不要吵!

　　A: Knock it off! I am trying to study.

　　B: Sorry, I didn’t know that you are studying.

　　29. Good night. 晚安。

　　A: Good night, everybody.

　　B: Good night, Jill! Have a sweet dream.

　　30. Sure! 可以呀!

　　A: Could I use your computer?

　　B: Sure!

　　31. Of course. 当然!

　　A: Could I borrow your car?

　　B: Of course.

　　32. Yes. 是的。

　　A: Is this your cell phone?

　　B: Yes, it is mine.

　　33. Why? 为什么?

　　A: Sarah is not coming.

　　B: Why?

　　34. Be careful on the road. 路上小心。

　　A: Be careful on the road. It’s getting dark.

　　B: Ok!

　　35. You decide. 你决定吧!

　　A: Do you want the black tie or the red one?

　　B: You decide.

　　36. Never mind. 没关系/不要紧!

　　A: I am sorry that I broke your radio.

　　B: Never mind.

　　37. That's all right. 没关系!

　　A: I didn't mean to be bump into you.

　　B: That's all right.

　　38. I don't know. 我不知道!

　　A: Do you know where the police station is?

　　B: I don't know.

　　39. Is there anything wrong? 有问题吗?

　　A: The boss was very angry at the meeting.

　　B: Why? Is there anything wrong?

　　40. No problem. 没问题!

　　A: Could I borrow your car tomorrow?

　　B: Sure! No problem.

　　41. You are joking! (No kidding) 别开玩笑了!

　　A: Did you know that Linda's uncle is Jacky Chen?

　　B: You are joking! How did you know that?

　　42. Why not? 为什么不行?

　　A: You can't go out today.

　　B: Why not?

　　43. I don't understand… 我不懂……

　　A: Betty broke up with her new boyfriend.

　　B: I don't understand how could this happen?

　　44. And then? 然后呢?

　　A: You should take this form to the first counter.

　　B: And then? What should I do?

　　45. So what? 那又如何?那又怎样?

　　A: Do you know there is a new theater down the street?

　　B: Yeah. So what?

　　46. It's alright. 还好。

　　A: How's your steak?

　　B: It's alright.

　　47. I am OK. 我没事。

　　A: Are you hurt?

　　B: I am OK.

　　48. Bon voyage. 一路顺风!

　　A: We are leaving for Boston tonight.

　　B: Bon voyage.

　　49. What happened? 发生了什么事?

　　A: Lucy is crying.

　　B: Why? What happened?

　　50. Come on! 来嘛!拜托!

　　A: I don't want to go to the party.

　　B: Come on! Don't be shy.