The president paid a______visit to the United States.A．countryB．nationC．motherlandD．states

Mrs．Longworth was annoyed because__________ ．A.the vice．president didn’t thank her for her

Presidents’Day emphasize two greatest presidents of the US: _____________A.George Wash

To many Americans, Obamas election as President marked______.A．the ending of violenceB．a t

A letter to the president exposed the corruption of some managers in his firm; ______ t

－－－Have you paid ？ What’s my share of the bill？ －－－____. It wasn’t very much.A．Don’t worry about it.

I think that the Great Wall is worth ____________hundreds of miles to visit. A) to t