问题
选择题
—Do you know what EU stands for, Tommy?
—Sure．It stands for the European Union,______ European political and economic organization that encourages trade and friendship between ______ countries that are members．
A．an; the
B．a; the
C．the; /
D．an; /
答案
答案：B
考查冠词：句中a … organization一个……的组织；the countries that are members特指其成员国，故选B。