We all took a in the pool to cool down from the summer heat.​

You  must do your homework                           maths teacher

-You mustn't watch tv so much                         grandmother

-You must clean your room                              mother

-You mustn't go to bed so late                          mother

-You must clean your teeth                              dentis                      

-You mustn't eat so many sweets                      dentis 

-You must practise the piano                            music teacher

-You mustn'tn play so many computer games     bossy sister

-You mustn't talk in the lesson                           head techer

-You mustn't chew gum when you talk              head teacher

-You mustn't come home so late                          father

1. I am standing in the classroom now.

2. Pete is not reading a boo know.

3. The pupils are listening to the teacher now.

4. They are playing games now.

5. My friend is not helping me now.

6. Is she dancing with Fred now?

7. The children are learning a new song for the concert.

8. His brother is not looking for work now.

9. Are you hanging the garlands in the hall?

10. My sister is dusting the furniture in the bedroom now.

Объяснение:

Hello:) Это упражнение на Present Continiuous Tense, настоящее продолжительное время!