Classes are 什么at四点半

Classes are 什么at四点半 英语上课、放学填空Classes ____ at eight.Classes are ____ at five. Classes begin at 8:00.为什么要用begin 下文说 Classes are over at four.为什么不可以说 Classes are begin at 8:00呢？ Our classes are over at 4:30 in the (a ). There are two classes Saturday afternoon.A at B to C on D in 选什么,为什么 Bob and his classes are not have classes at school中文意思是 Classes are over.The students are 什么 the classroom Classes over和Classes are over的区别Classes ___ at 4 o' clock.A.overB.is overC.are over选哪个呢? They begin classes at two o'clock and classes a_____ over four twenty-five.填什么 Classes begin at eight. classes are 它和Class is over有什么 区别 classes begin at enght.为什么classes When are your classes? All my classes are over at 2 P.M.的同义句等于 All my classes 空 at 2 空 空 Classes are over at four in the afternoon改为同义句Classes____at four in the afternoon. at,thirty,are,classes,four,and,home,I,over,get,about,four怎么连成一句话? Classes are over at four in the afternoon.改为同义句 aftenoon,the,5:00,in,classes,are,at,over,our 连词成句（急!）