I didn't see Laura at the party last night.Do you know( )?

问题描述:

I didn't see Laura at the party last night.Do you know( )?
A.what happened
B.where she has been
选哪个呢?请给出理由,谢谢

选A,意思是“昨天晚上在聚会上我没有见到Laura ,你知道是怎么回事么(你知道发生了什么事么)?”.另外,从时态的角度考虑,可以看出前一句是一般过去时,所以时态应该照应.B选项是现在完成时,不合适.