---I ______ for you for two hours, but in vain. Where did you go?
---I ______ at my uncle’sA.had looked; may have stayedB.looked; must have stayedC.have looked; may be stayingD.looked; must be staying
网友回答
B解析本题考查时态。根据句意可知“我寻找你两个小时”是过去发生的事情，故用一般过去时；must have done表示过去一定做某事。故选B。