Вставьте в предложениях вредную собачку not. i mustn^t touch dad^s computer. he must wash his face. we must find our dog. she must write a letter. she mustn^t open the presents. she must help her mother.

I must not touch Dad's computer.
He must not wash his face.
We must not find our dog.
She must not write a letter.
She must not open the presents.
She must not help her mother.