【B3】A．countryB．U.S.C．continentD．world

quietly into American【B2】______as doctors,A.countryB.cityC.landD.society

We are told that it is（) we are born that decides our nationality.A.the countryB.anywher

Third－country calling refers to ______.A．calling via another countryB．finding a person in

They come from different ______.A、countryB、countriesC、a countryD、countrys

Canadas most important trading partner is______.A．JapanB．the U.S.C．BritainD．France

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