Артикль the з географічними назвами

They studied the geology of ____ Sahara Desert.

I like ____ Spain this time of year.

Would you like to visit ____ South America?

Have you ever been to ____ United Kingdom of Great Britain?

They live near ____ Thames.

____ Alps lie across eight countries.

They crossed ____ Black Sea by boat.

____ Hudson Bay is beautiful.

I've been living in ____ London for six years.

I went sailing around ____ Lake Geneva.