问题补充：
The bookten units, two revisions.
A. contains; including
B. includes; containing
C. includes; contained
D. contains; included
答案：
A. contains; including
B. includes; containing
C. includes; contained
(答案→)D. contains; included
解析：考查contain和include用法辨析。Contain表示包括的全部内容，即该词后面的宾语只是所包括的全部内容，include表示包括的部分内容。句意：这本书包括了10个单元，包括了两个复习单元。因为two revisions与include构成被动关系，故使用过去分词的形式。故D项正确。
