The United States bought Louisiana from ______.A．FranceB．SpainC．BritainD．Mexico

Old－fashioned cheeses can no longer be bought anywhere in the United States.（)

The Gilded Age refers toA．the United States in 1820s.B．the United States in early 20th cen

In the United States, the Senate is presided over by______of the United States.A．the presi

After 1850 various states in the United States be

After 1850 various states in the United States be

The United States is composed of fifty states tw