问题补充：
He told his friends that he what he was reading at the same time the day before.
A. was just asked
B. just asked
C. had just asked
D. had just been asked
答案：
A. was just asked
B. just asked
C. had just asked
(答案→)D. had just been asked
解析：动作应发生在主句谓语动词told之前, 因此应用过去完成时, 又由于动作是被动的,所以只有选D项了.
