A:黄色人种
B:白色人种
C:黑色人种
D:混血人种
全世界无产阶级的战歌《国际歌》创作的背景是( )
下列句子中划线的词语使用不恰当的一项是( )
—Guess what? I happened to have met Mark at the party last week.
—If my memory serves me correctly, you two ________ each other for almost ten years.