Referring to reading, we must have the patience to read book so that we will have deep understanding of it.
A. the; the
B. a; a
C. the; a
D. a; /
网友回答
A. the; the
(答案→)B. a; a
C. the; a
D. a; /
解析：句意：谈到阅读时，我们必须有耐心去读 一本书，这样我们才会对它有一个深刻的理解。故选B。book是可数名词， understanding是可数名词，理解，a在这里表一个。故选B。
考点: 考查冠词的用法。