begins class和classes begin为什么加s?

begins class和classes begin为什么加s? classes begin at ...和class begins at ...它们有什么区别? 是Class begin.还是Class begins.还是Classes begin.为什么? Our school ——at eight in the morning A.begin class B.begin classes C.begins classD.begins classes 为什么classes begin中classes变class时,begin变begins Class begins （ ）begins at eight .A:school B:A school C:Classes D:Class It's eight fifteen.＿＿＿begins. A.Lessons B.Class C.Classes Class begins at?是什么意思? （ ）_______ at 8：00 in the morning.A.The classes begins B.Class begin C.Class begins1,He has lunch quickly.= He has _________ _________ lunch.（ ）2._______ at 8：00 in the morning.A.The classes begins B.Class begin C.Class begins D.Begin cla classes are 它和Class is over有什么 区别 after classes和 after class有什么区别啊 1.Classes ———— .A.begins B.begin C.are begin D.are begins2.take和bring after class 还是 after classes 书上说是“Classes begin at eight.She has four classes in the morning.”我疑惑为什么不是Class begin和four class in the morning. the first class begins at的意思 Our English class begins at eight翻译 Class begins 是什么用于那类