请选择ABC)H6o0C7b8H7q-t(X+z You ____ gone without leaving a message. We got very worried.(@2r-a:C)d.@'H;i8S.X
A. needn’t have(@2r-a:C)d.@'H;i8S.X
B. mustn’t have(@2r-a:C)d.@'H;i8S.X
C. shouldn’t have(@2r-a:C)d.@'H;i8S.X