Ответ:

1. While he was listening to the argument, the boat's engines started.

2. Someone fell into the water, Harry realized who it was and jumped in too.

3. Still underwater, swam close to the boat, then came up silently. Three people were arguing loudly.

4. The boat began to move away. As he decided what to do, he heard a scream.

5. Before it started moving, Harry quickly climbed onto the back of the boat and hid.

Объяснение: