问题补充:
单选题Thewholebook________twelveunits,________twothataremainlyforrevision.A.contains; includingB.includes; containingC.contains; containingD.includes; including
答案:
A解析contain一般“包含”得是一个整体,侧重“内有”的意思;include往往包含的是整体的一个部分或几个部分,including在这里是介词。依题意A为最佳选项。