on the day ;at the day;in the day 的区别

It's always hot ___ there.A.in day B.on day C.at day D.in the day on the day ;at the day;in the day 的区别 Most people work ( ) the day and sleep ( ) nightA on;at B during;in C on;in D during;at Their parents will arrive ___2.00p.m _____ the Open Day.A.at,in B.at,at C.at,on D.on,on Doctors often work () the day and sometimes () nightA.in at B.at in C.in in D.on at the kids spend two hours ________chinese every day. A.ON B .IN C.AT D.TO She works very hard the day.A.at B.on C.in D.of Mary studied ______eaams the day before yesterdayA.on B.for C.at D.in （）the middle () the day ,we have lunch () school.A:On ,in ,at B :At ,of ,inC :In ,of ,at .D :In ,of ,on 单项选择 My little cat sleeps _ the day ,but _ night he begins to work.A：at,at ；B：on,is ；C：on,at ；D：during,at on the first day还是in the first day还是at the first? The video shows what happened ___ the Open Day at our school.A)about B)on C)in D)from the moon is round ()the night of Mid-Autumn Day A on B at C in D for The video shows what happened _ the Open Day at our school.A)about B)on C)in D)from the flower is open ____ the day and closed ____ night.A.on at B.for in C.during at D.about at 翻译on his very first day at the factory People usually work__（in,on,at)the day at / in /on the last day?哪一个?说明原因