--- He is always strict his students.
--- That is why he is popular the students’ parents.
A. with; for
B. for; for
C. to; to
D. with; with
网友回答
A. with; for
B. for; for
C. to; to
(答案→)D. with; with
解析：考查介词：第一空填with，be strict with sb对某人很严格，第二空填with，be popular with受…欢迎，句意：--他总是对学生要求很严格。--那就是为什么他受学生家长欢迎的原因了。选D。