1. Carlos has just buy/havejust bought/have bought a dog. - Carlos has just bought a dog.

2. Maria and Helen has already started/ have already/started at a new school. - Maria and Helen have already started at a new school.

3. Frances has broke/ has break/ has broken her cup. - Frances has broken her cup.

4. I have lose/have lost/ Have losed my umbrella. - I have lost my umbrella.

5. They hasn't done/ haven't do/ haven't done the shopping yet today. - They haven't done the shopping yet today.

6. Tom has never visit/ has never visited Disneyland. - Tom has never visited Disneyland