In the Untied States,______shares both the nickname "cradle of Liberty" and "The Athens of

Share prices on the Stock Exchange plunged sharply in the morning but ______ slightly in t

The Untied States and Canada are lands of ______ except for the Indians, who are the only

Employees should______themselves of the opportunity to buy cheap shares in the company.A．a

The United States today is the______largest country in size in the world.A．secondB．thirdC．

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

In 1900, the United States ranked first in the world in the production of______.A．coalB．el