The woman still doesn't know what __in her home while she was awa_英语解答

The woman still doesn't know what __in her home while she was away.
a/ happens b/happened c/ will happend /washappened
分析、
谢

人气：169 ℃　时间：2019-11-10 10:53:30

解答

b
过去式,又因为不是被动的发生所以也不能选d