【题目】Why didn't you tell me about your trouble last week? If you ___ me, I could have helped.
A.told
B.had told
C.were to tell
D.would tell

【答案】B
【解析】题目考查虚拟语气。句意：你上周为什么没有告诉我你遇到的麻烦？如果你告诉我的话，我就可以帮你了。根据第一句可知，这里是对过去发生的事情进行虚拟，if条件句的时态应该用过去完成时，故选B。