пожалуйста, помогите, очень срочно нужно!

Study the example. Make positive and negative sentences.

Example:

My granny has made breakfast for me. (make)
My parents haven't arrived yet. (not / arrive)

1. Mum
to her work. (go)

2. My granny
on a computer before. (not / work)

3. I
the dog yet. (not / walk)