"The" with place names

_____ River Nile

• the

• -

• a

• an

____ Oxford Street

• a

• -

• an

• the

___ United States

• -

• a

• the

• an

___ Paris

• a

• an

• -

• the

___ United Kingdom

• the

• -

• a

• an

___ Tower Bridge

• a

• -

• an

• the

___ Sahara

• -

• a

• an

• the

___ Atlantic Ocean

• a

• -

• the

• an

___ National Theatre

• -

• the

• a

• an

___ Tower of London

• a

• an

• -

• the