1. Nam: What are you looking ______? - Lan: I'm looking for my pen.

2. Nam: I usually go to work ______bus. - Lan: That's convenient.

3. Nam: My house is ______a small lake. - Lan: How peaceful!

4. Nam: Are you worried ______the test? - Lan: Yes, a little bit.

5. Nam: We arrived ______the airport early. - Lan: Good job.

6. Nam: Is there any milk ______the fridge? - Lan: Yes, two bottles.

7. Nam: I will see you ______Monday. - Lan: Okay, see you then.

8. Nam: Who is the girl standing ______Nam? - Lan: That's his sister.

9. Nam: Are you tired ______this cold weather? - Lan: Yes, I want summer.

10. Nam: The book is ______the two vases. - Lan: I see it.

11. Nam: What's the matter ______your leg? - Lan: I fell down.

12. Nam: I'm not very good ______drawing. - Lan: Keep practicing!

13. Nam: Do you stay ______home on weekends? - Lan: Usually, yes.

14. Nam: I am looking forward ______the holiday. - Lan: Me too!

15. Nam: My birthday is ______July 10th. - Lan: Happy birthday in advance!

16. Nam: Please sit ______that chair. - Lan: Thank you.

17. Nam: I have to go ______the dentist. - Lan: Hope you feel better.

18. Nam: Lan is very nice ______everyone. - Lan: She is a kind girl.

19. Nam: The shop is open ______9 a. m. to 9 p. m. - Lan: Thanks.

20. Nam: Do you believe ______ghosts? - Lan: No, I don't.

21. Nam: Don't be late ______the meeting. - Lan: I'll be there on time.

22. Nam: Put your shoes ______the door. - Lan: Okay, I will.

23. Nam: I want to travel ______the world. - Lan: That's a great dream.

24. Nam: Is the cat hiding ______the sofa? - Lan: Yes, it's behind it.

25. Nam: Thank you ______your help. - Lan: You're welcome.