单选题Though Jane speaks Russia

问题补充：

单选题ThoughJanespeaksRussianwell,shethinksitnecessarytolearn___foreignlanguage.A.the otherB.the secondC.a secondD.other

答案：

C解析a second 指 second foreign language(又一外语), 序数词前加不定冠词,意思是:一,又一.