1. Nam: The children ______ playing in the park. - Lan: They look very happy.

2. Nam: Some water ______ on the floor. - Lan: I will clean it now.

3. Nam: A lot of money ______ spent on this car. - Lan: It's very expensive.

4. Nam: A few books ______ on the table. - Lan: They are mine.

5. Nam: Both Mary and Lan ______ good at English. - Lan: Yes, they study hard.

6. Nam: Someone ______ at the door. - Lan: I will open it.

7. Nam: Two kilometers ______ a long way to walk. - Lan: Yes, let's take a taxi.

8. Nam: The police ______ coming now. - Lan: That's good.

9. Nam: Everyone ______ ready for the party. - Lan: Let's start!

10. Nam: Her luggage ______ very heavy. - Lan: Let me help her.

11. Nam: Maths ______ my favorite subject. - Lan: I prefer English.

12. Nam: The news ______ very interesting today. - Lan: Really? What happened?

13. Nam: A pair of shoes ______ under the bed. - Lan: They are Nam's.

14. Nam: Doing exercises ______ good for your health. - Lan: You're right.

15. Nam: Dancing and riding ______ her hobbies. - Lan: She is very active.

16. Nam: The United States ______ a big country. - Lan: Yes, it is.

17. Nam: Each student ______ a new book. - Lan: That's great.

18. Nam: Not only Tom but his sisters ______ coming. - Lan: I will prepare more food.

19. Nam: Neither his brothers nor Tom ______ here now. - Lan: Where are they?

20. Nam: The number of students ______ fifty. - Lan: It's a large class.

21. Nam: A large number of students ______ waiting outside. - Lan: Let them in.

22. Nam: Tom with his parents ______ going to the zoo. - Lan: They will have fun.

23. Nam: Traffic in this city ______ very bad. - Lan: Yes, especially in the morning.

24. Nam: The furniture ______ old but nice. - Lan: I like it.

25. Nam: The rich ______ not always happy. - Lan: I agree with you.