there are 50 teachers ____ a: at school . b: in school. c: in the school 哪个正确?

问题描述:

there are 50 teachers ____ a: at school . b: in school. c: in the school 哪个正确?

答案选c:in the school 在学校
a:at school 在学校;在上课;在求学;偏向于指学生在学校上课
b:in school 在求学