问题描述：
Jack told Mary that he ____what he was doing during the vacation.
a.had just been asked
b.has just asked
c.was just asked
d.just asked
1.选一个正确的,并说明其他3个为什么不对?最后翻译一下这句话
a.had just been asked
b.has just asked
c.was just asked
d.just asked
1.选一个正确的,并说明其他3个为什么不对?最后翻译一下这句话
问题解答：
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