那个好像不是who 应该是what吧
while 动词时态并列 所以选A
I still don't know who ___while I was away from home .
I still don't know who ___while I was away from home .
A happened B had happened (为什么不能选择b)
A happened B had happened (为什么不能选择b)
英语人气:244 ℃时间:2020-01-26 05:34:09
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