问题补充：
15. It was with great joy he received the news his lost daughter had been found.
A. because, when
B. which, that
C. since, how
D. that, that
答案：
A. because, when
B. which, that
C. since, how
(答案→)D. that, that
解析：第一空填that，构成强调句型，被强调成分为 with great joy；第二空也填that.用以引导同位语从句，修饰名词the news。
