Oman is the only country that starts with the letter "O", and there are no countries that start with "X"
Oman is the only country that starts with O.
Oman is the only country that starts with O. There is no other country.
Oman is a country that starts with the letter O. (In fact, it's the ONLY country beginning with the letter O.)
Oman
Only one country starts with the letter O, which is Oman.
There are no countries in Europe that start with the letter O. Oman is the only country in the world that begins with the letter O. Oman is in Asia.
Oman.Note:Oman is the only country that starts with the letter o.
Oman
There are no 5 letter countries in Asia that begin with the letter "O". The only country in Asia that begins with "O" is Oman.
One country starts with the letter "O", Oman
Oman is the only country around the Persian Gulf that starts with the letter "o".
Oman is the only country in the world that begins with the letter O. It is in Asia.