问题补充：
I’m afraid I can’t take down what you’ve just .
A. refered
B. referred to
C. refered to
D. referred
答案：
A. refered
(答案→)B. referred to
C. refered to
D. referred
解析：这是主从复合句,what you’ve just… 为take down的宾语从句, have just +pp为现在完成时 ,refer动词的过去式是 referred.
