When the news came the war broke out he decided to serve in the army.A. since B. which C

问题补充：

When the news came the war broke out, he decided to serve in the army.

A. since

B. which

C. that

D. because

答案：

A. since

B. which

(答案→)C. that

D. because

解析：考查同位语从句。that引导同位语从句，在从句中不充当任何成分，只是起到连接作用。