. It was the fact his father was ill in hospital worried him and kept him awake for a whole night .
A. which ; that
B. which ; which
C. that ; which
D. that ; that
网友回答
A. which ; that
B. which ; which
C. that ; which
(答案→)D. that ; that
解析：考查同位语从句和强调句型。第一空是同位语从句，that后的从句解释前面的名词the fact，第二空，用that是强调句型的标志，所以选D。