单选题 Probably there"s a good reason for her absence, as she doesn"t usually stay away from work.
【正确答案】 D
【答案解析】[解析] 只有D项presumably“大概”符合题意。conspicuously“显著地，招人眼地”，prospectively“预期地，有希望地”，incidentally“顺便地”。