是over class还是 over classes,到底那个对啊

是over class还是 over classes,到底那个对啊 是what time is class over还是what time is the class over请说明理由 after class和class over意思一样吗?是 class is over对不起打错了 class over对吗 I talked and talked _______the class是 over 还是 in front of 并翻译 是think it over 还是 think over it ? 为什么? 是talk sth over 还是talk over sth 艾薇儿有一首歌,是 get it over ,还是get over it? Class is over.其中Class 是可数名词还是不可数名词?为什么前面没有a 或者the如果class是代表一节课的意思 前面为什么没有a 为什么是class is over 不是the class is over （school is over） at 4:00 与括号意思相近的是 A .school is closed B.Class is over C.We can go home （school is over） at 4:00 与括号意思相近的是 A .school is closed B.Class is over C.We can go home over over over over over over