It（）aroundsixo’clockwhenIdrovebackyesterdaybecauseitwasalreadydark.A、must have beenB、must heC、was to beD、had to be
It（）aroundsixo’clockwhenIdrovebackyesterdaybecauseitwasalreadydark.
- A、must have been
- B、must he
- C、was to be
- D、had to be
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单选题It（）aroundsixo’clockwhenIdrovebackyesterdaybecauseitwasalreadydark.Amust have beenBmust heCwas to beDhad to be