Question

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

A．since

B．which

C．that

D．because

Answer 1

C

考查同位语从句，he war broke out是对news的解释说明，根据句子意思“当战争爆发的消息传来，他决定去部队服役。因此选C。since既然；which表示物的关系词；because 因为。