Question

colocar essas frases no plural : 7- what is the teacher going to do to that boy?
8- what is this box on my table?
9- That is his new schoolfriend.
10- She has to finish this exercise by four o' clock.
11- This isn't the girl I want to talk to.
12- That is a good question.
13- This book belongs to that boy.
14- This apple is delicious.

Answer 1

Existem algumas alternativas, dependendo do que você quer colocar no plural, vou colocar todas:

7. What are the teachers going to do with those boys? [teacher e boy no plural] / What are the teachers going to do with that boy? [só teacher no plural] / What is the teacher going to do with those boys? [só boys no plural]

8. What are these boxes on my table?

9. Those are his new schoolfriend.

10. They have to finish this exercise by four o'clock.

11. These aren't the girls I want to talk to.

12. Those are good questions.

13. These books belong to that boy.

14. These apples are delicious.