单选题Although punctual himself &nbs

问题补充：

单选题Althoughpunctualhimself,theprofessorwasquiteused________lateforhislecture.A.to have studentsB.for students’ beingC.for students to beD.to students’ being

答案：

D解析be used to（sb. ’s）doing sth.习惯于（某人）做某事。