问题补充:
Nobody believed his reason for being absent from the classhe had to meet his uncle at the air port.
A. why
B. that
C. where
D. because
答案:
A. why
(答案→)B. that
C. where
D. because
解析:考查名词性从句中的同位语从句。句意:没有人相信他不来上课的原因是他去机场接他的父亲去了。用that作reason的同位语,并起解释说明的作用。所以选B。