A number of questions will be discussed by the studentsbeginners of English fail to use th

问题补充：

A number of questions will be discussed by the studentsbeginners of English fail to use the language

properly.

A. which

B. as

C. why

D. Where

答案：

A. which

B. as

(答案→)C. why

D. Where

解析：主要测试同位语从句。由语境可知译文：许多有关为何英语初学者不能合理利用英语的问题将有学生们来讨论。结合语境可知句子beginners of English fail to use the language properly需要状语，另外再结合所给答案可知why为最佳选项。