Asastudent,youmustarriveatschool

问题详情：

As a student, you must arrive at school ________.

A. on time               B. in time               C. for the first time        D. from time to time

【回答】

A   on time“按时”；in time“及时”；for the first time“第一次”；from time to time“有时；间或”。将选项代入题干可知on time符合题意。

知识点：介词和介词短语

题型：选择题