—Ifinditverydifficulttoread

问题详情：

 —I find it very difficult to read ___________novel you lent me last week.

—Yes. It's necessary to have ___________good knowledge of history.

A. the；不填        B. a；不填        C. the; a        D. a; a

【回答】

C

知识点：冠词

题型：选择题