题目

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：C解析：that引导同位语从句，对news进行解释说明。句意：当战争爆发的消息传来时，他决定参军。故选C项。16．Modern（现代）agriculture has more advantages than traditional agriculture．