u.s

the u.s. government has announced new policies.

u.s. citizens can travel to many countries visa-free.

the u.s. economy is the largest in the world.

many students dream of studying at u.s. universities.

the u.s. dollar is used as a global currency.

u.s. relations with china are complex and important.

the u.s. military maintains bases around the world.

u.s. technology companies lead in innovation.

the u.s. president serves a four-year term.

u.s. culture has influenced people worldwide.

the u.s. constitution is one of the oldest written national constitutions.

u.s. exports include agricultural products and machinery.