Although he is always ing on time，he is used late for his class.
A. to have students
B. for students’ being
C. to students’ being
D. for students’ to be
网友回答
A. to have students
B. for students’ being
(答案→)C. to students’ being
D. for students’ to be
解析：be used to是习惯用语，意为“习惯……”，to是介词，后接名词、代词或动名词。该句中students’ being late是动名词的复合结构。该句意为“尽管他总是按时到，但他已习惯于学生的迟到。”故答案为C。