You needn't have apologized for your absence , it' s hardly your fault.
A. besides
B. therefore
C. however
D. meanwhile
网友回答
(答案→)A. besides
B. therefore
C. however
D. meanwhile
解析：考查副词。句意：你本没有必要因为你的缺席而道歉的，加之又不是你的过错。A. besides而且，加之B. therefore因此 C. however 然而 D. meanwhile在此期间，与此同时，根据句意所以Ａ正确。