Explanation:

All four pairs are correctly matched.

1. Hurricanes - Atlantic: This is correct. The tropical cyclones that form over the North Atlantic Ocean are called hurricanes.
2. Typhoons - Western Pacific: This is correct. Tropical cyclones that form in the Northwest Pacific Ocean, to the east of the dateline, are referred to as typhoons.
3. Willy Willy - Western Australia: This is correct. "Willy Willy" is a term that was traditionally used for tropical cyclones in Western Australia. However, it's worth noting that the term is now largely outdated, and Australians generally use the term "cyclone."
4. Cyclones - Indian Ocean: This is correct. In the Indian Ocean, they are generally referred to as cyclones.