It was 2012_____he finished his study abroad and returned to his motherland.A.when B.that

It was 2012_____he finished his study abroad and returned to his motherland.A.when B.that
It was 2012_____he finished his study abroad and returned to his motherland.
A.when B.that

It was 2012_____he finished his study abroad and returned to his motherland.A.when B.that
It was 2012_____he finished his study abroad and returned to his motherland.
A.when B.that
答案：A
这是定语从句,关系副词在定语从句中作状语,指代2012.
翻译：那是2012年,那年他完成了国外的学习回到了他的祖国.
It was （in） 2012_____he finished his study abroad and returned to his motherland.
A.when B.that
答案：B
如果加上in就是强调句.强调句的特点：去掉It is...that...原句子结构完整,这也是
判断是否 强调句的方法.
翻译：他是在2012年完成了国外的学习回到了他的祖国的.