2. Rose / a cat

Short Explanation

To form questions with 'have/has got', we place 'have' or 'has' at the beginning, followed by the subject and then 'got a...' or 'got an...'. Short answers are 'Yes, I/you/we/they have' or 'No, I/you/we/they haven't' for 'have', and 'Yes, he/she/it has' or 'No, he/she/it hasn't' for 'has'.

Step-by-step solution

1. Step 1: Form the question. Since 'Rose' is a singular female subject, we use 'Has'. The question is 'Has Rose got a cat?'.
2. Step 2: Provide a short answer. Assuming Rose has a cat, the answer is 'Yes, she has'.

Answer: Has Rose got a cat? Yes, she has.