问题
选择题
____ she couldn’t understand was _____ fewer and fewer students showed interests in her lessons.
A．What; why
B．That; what
C．What; because
D．Why; that
答案
答案：A
考察连词。根据句子结构可知，第一空为主语从句，从句中缺少understand的宾语，第二空为表语从句，从句中缺少原因状语。
句意为，她无法理解的是，为什么越来越少的学生对她的课感兴趣。