问题描述：
A:Icalled you yesterday evening,but there was no answer
B:Oh,Iam sorry.I____dinner at my feiend's home.
A.have B.had C.was having D.have had
B:Oh,Iam sorry.I____dinner at my feiend's home.
A.have B.had C.was having D.have had
问题解答：
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