单选题It（）aroundsixo’clockwhenIdrovebackyesterdaybecauseitwasalreadydark.Amust have beenBmust heCwas to beDhad to be
单选题
It（）aroundsixo’clockwhenIdrovebackyesterdaybecauseitwasalreadydark.
A
must have been
B
must he
C
was to be
D
had to be
参考解析
解析：
暂无解析