It was during the Second World War,he was in his early twenties,he joined the British army.A.that;when B.when;that C.when;when D.that;that
问题描述：
It was during the Second World War,he was in his early twenties,he joined the British army.
A.that;when B.when;that C.when;when D.that;that
答
B 第一个是一个定语从句!第二个是强调语句的that