Class begins 是什么用于那类

Class begins 是什么用于那类 Class begins Class begins at?是什么意思? 老师喊上课,下课 ,用英语怎么说~class begin ,class begins,class beginning,class is begin?class is over,class over?到底是什么?我想问over 在这是什么词性?名词,形容词,还是副词?begin 在这又是什么词性? the first class begins at的意思 Our English class begins at eight翻译 There ___ the bell.Class begins(go) 是Class begin.还是Class begins.还是Classes begin.为什么? Class begins为什么Begin要加SClass begins为什么Begin要加S 是用Class begin 还是Class begins好像class begin是习惯用语,但应该用三单! class 由被动的吗?比如说上课 是 class begins 还是 class is begun? 英语翻译Our first class begins at _____ _____ _____ _______ This school begins _______（class）at 7:45 Our first class begins at _____ _____ _____ _______ Class begins at eight thirty.改为同义句 No.Class begins at eight fifteen.的问句 用at class our eight begins o'clock 连成一句话 对划线部分提问 The class begins at 10:00.