问题
选择题
—We were surprised to hear that the reason ________ she gave for her absence was ________ her mother was ill.
—Yes.We saw her mother was at the supermarket that morning.
A．why；that
B．which；that
C．that；because
D．why；because
答案
答案：B
解析 第一空可填which或that来引导定语从句，而第二空的表语从句必须用that引导。