问题
选择题
The teacher doesn’t believe his reason for being absent from class ___ he was ill, ____mad him sad.
A．that ; which
B．why; which
C．why; what
D．that ;what
答案
答案：A
考查从句。第一个为同为语从句，解释原因的内容，故用that；第二格为非限制性定语从句，故用which引导。