--Whywasheabsent       schoolyesterday'?       --Becaus...

问题详情：

--Why was he absent        school yesterday'?

        --Because he was ill．

       A．for          B．from           C．off         D．out

【回答】

B[提示：absent from school意为“缺课”，故选B。]

知识点：介词和介词短语

题型：选择题