是at school days 还是 on school days 还是 in school days

是at school days 还是 on school days 还是 in school days 是AT SCHOOL 还是 ON SCHOOL The school is over at 5 o'clock 还是 The school over is at 5 o'clock over 是at one's school 还是 in one's school 是work at school 还是work in school ? Kate was not at school for three days=Kate was () () for three days注意是两个空的 School at nine o’clock on school night还是nights on school day还是days A student goes to school＿＿.是five days a week 还是a week five days, 是study at xx school还是study in xx school为什么不用at呢？ 在英文里在中学是at middle school 还是at middle school 英语翻译是work in the school 还是at the school work at 不是在... my days at school和my days at home的作文急急急急急急 初一英语I___our school at nine o'clock this morning.中间填reached还是arrived Which he wore only on special days at school Many students can enjoy f() lunch at school these days. They have unch at home on school days. He s___ at school five days a week.补充单词