问题补充：
The reason he is absent is he has a bad cold.
A. why; that
B. why; because
C. that; because
D. for; that
答案：
(答案→)A. why; that
B. why; because
C. that; because
D. for; that
解析：从句考查题，第一空是定语从句因为从句缺状语只能选why；第二空he has a bad cold.是表语从句不缺成分只需连接词用that。句意：他缺席的原因是他感冒了。
