Change the affirmative sentences into negative sentences and fill in the blanks. Use the contracted forms e.g.  can't, don't, doesn't etc.

Notice: sometimes both the auxiliary and the main verb are missing from the sentence, but sometimes you should fill in the blanks with only the auxiliary verb.

Example: I listen to my dad.

I don't listen to my dad.

NOT:  I do not listen to my dad.

1. I can play the guitar.

I can't play the drums.

2. Geri and Melanie work very hard.

Geri and Melanie don't work very hard.

3. She knows my phone number.

She doesn't know my phone number.

4. Alison wears a wedding ring.

Alison doesn't wear a wedding ring.