Theteachers

The teachers________themselves with marking the students’ papers after the monthly examination.

A．involved B．devoted

C．occupied D．absorbed

C　考查動詞詞義辨析。這裏指老師們忙於改月考卷子。involve意為“涉及；使參與”；devote意為“致力於”，後跟介詞to; occupy意為“佔據”，occupy oneself with sth意為“忙於做某事”；absorb意為“吸收；使全神貫注”，常跟介詞in。依據語意可知選C。