When ________ about his plan, he said he hadn’t made it yet.

When ________ about his plan, he said he hadn’t made it yet.
A、was asked
B、asked
C、was asking
D、asking
【正确答案】：B
【题目解析】：asked在这里做非谓语，句子主语是he，因此he 是被询问的，用done 的形式。