问题
选择题
Mail or gifts posted by companies to customers ________ advertising.
A.are another
B.is the other
C.are other
D.is another
答案
答案:D
本题考查主谓一致。句中由or连接的两个主语,其谓语动词与前一个主语保持一致,故谓语动词用单数;代词another指不定范围中的另外一个,故选D。