This book 10 units two revision units.A. includes; containingB. contains; includingC. c

问题补充：

This book 10 units , two revision units.

A. includes; containing

B. contains; including

C. contains; included

D. includes; containing

答案：

A. includes; containing

(答案→)B. contains; including

C. contains; included

D. includes; containing

解析：考查动词辨析。contain“包含；包括；含有”指包括所有部分；include“包括”指包括部分。句意：这本书有十个单元，包括两个复习单元。第二个空this book和include之间是主动关系，用including，所以答案选B。