How can I get hands-on practice when my partner does every click in our computer lesson?

By the time I found the menu, my partner had made the chart and moved on. "This way we get finished," she said.

It's an adult beginners' class, with one computer between two of us. The worksheet is nearly complete, but I couldn't repeat the steps on my own. My partner has used spreadsheets at work and is being helpful in the way she knows: keeping us from falling behind.

I asked for a turn once. She watched while I searched, then took the mouse to show me. I want to ask for practice time without making her sit silently through every mistake. Should we agree on turns, or should I ask the tutor how the paired work is meant to run? My printed chart currently proves that someone at our desk knows what to do.