I had to work last Sunday because I ____ to write an article for a magazine.

题目

I had to work last Sunday because I ____ to write an article for a magazine.
A .asked
B .had been asked
C .had asked
D .have been asked

答案

B 应该用过去完成时.时间从、现在开始推算的话上个星期天是过去时态,但是文中的"我"是在上个星期天之前被 要求要做这件事的.所以是 过去的过去,用过去完成时态