They ofen have a class meeting_____3P.M ______every Friday.A.at；\ B.on；on C.in；on D.at；on请不要单纯的给我一个答案~对了,everyday 和every day 有什么区别吧

They ofen have a class meeting_____3P.M ______every Friday.A.at；\ B.on；on C.in；on D.at；on请不要单纯的给我一个答案~对了,everyday 和every day 有什么区别吧
They ofen have a class meeting_____3P.M ______every Friday.
A.at；\ B.on；on C.in；on D.at；on
请不要单纯的给我一个答案~对了,everyday 和every day 有什么区别吧

They ofen have a class meeting_____3P.M ______every Friday.A.at；\ B.on；on C.in；on D.at；on请不要单纯的给我一个答案~对了,everyday 和every day 有什么区别吧
本题选A at修饰时间,就是at后面跟时间,例如；at 3PM,every前面不写任何介词,故选A
everyday 形容词：每天的,
例句 a shirt for everyday wear
every day 通常做“每天”解作状语时,省掉介词（in),表示频率
例句
I go to school every day.
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