Activity 4:  

   "MUST."

- I must do the chores at home.

- I must do the cleaning of my room 

- I must do my homework

- I must help with cleaning home 

- I must go to school every day

      "MUSTN'T."

- I  mustn't  throw trash in the yard 

- I mustn't  disobey my mother 

- I mustn't fight with my sister

- I mustn't throw clothes on the floor

- I mustn't be late getting home