“星期”用什么介词?如“on/at/in”等如：we'll take the exam ( )the second week of May.

“星期”用什么介词?如“on/at/in”等如：we'll take the exam ( )the second week of May.
“星期”用什么介词?如“on/at/in”等
如：we'll take the exam ( )the second week of May.

“星期”用什么介词?如“on/at/in”等如：we'll take the exam ( )the second week of May.
on

星期用on

on用于表示确定的时间，在具体某一天或某天的上/下午，晚上或一般节目。故星期用On on Sunday on Friday afternoon

in 因为说的是五月的第二周