If I remember correctly， was ten years ago that your brother went to Canada.
A. this
B. which
C. as
D. it
网友回答
A. this
B. which
C. as
(答案→)D. it
解析：句意：如果我记得准确的话，你哥哥去加拿大是在去年。这里用了强调结构：It is/was+强调部分+that+其余部分…，判断是否是强调句的方法是：去掉强调结构，如果这句话成立，就是强调句，这里如果去掉强调句结构，这句话就成了your brother went to Canada ten years ago.可以看出成立的句子，所以是强调句，选D。