Use articles with geographical names THE.
1. ___ Pacific is much larger than ___ Arctic or ___ Indian ocean,
2. Portugal is a small country in ___ west of Europe; on one of its borders is ___ Spain, on the other ___ Atlantic Ocean
3. ___ Mont Blanc is the highest peak in ___ Alps.
4. ___ United Kingdom includes ___ Great Britain and ___ Northern Ireland; it occupies ___ British Isles.