The United States of America consists of 50 states and a federal government.（)

The two newest states which joined the United States of America areA．Alaska and Florida.B．

The national day of the United States of America falls on______.A．July 4thB．June 4thC．July

The Civil War began in______between what the United States of America called the Union and

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

The United States of America is among the top 10

The United States is composed of fifty states tw