We must eat or drink in the classroom.改为否定句怎么改

We must not eat or drink in the library.为什么要用or?为什么不用and? We must not eat or drink in the classroom. (must not eat or drink 画线)对画线部分提问（）we mustn't () in the classroom? We must eat or drink in the classroom.改为否定句怎么改 We must not eat（ ）drink in the classroom. we must not food or drink in the classroom. You must not eat or drink in tile reading room.(祈使句)_____ _____ or drink ill tile reading room You must not eat or drink in the libary.哪些英文是错的. What shouldn't we drink or eat before sleeping?的中文 We can't eat （ ） drink in class.中间填写“and”还是“or” don,t eat or drink的意思 We eat and drink with ________ We eat ice cream and drink lemonade. we can cross the road when we see the green man(否定句)we———— ————cross the road when we see the green man.两个空格,是can not还是must not,可它们一般都是合写的,是don’t eat or drink还是and? We shouldn't smoke and eat or drink here.是用and 还是or?两个标志放在一起说,否定句是不是连接这两个标志也要用or? You must eat and drink here.（否定句） eat or drink和eat and drink区别以及would什么什么的语法 在空白处填入适当的单词填空,每空一词A:what are the library rulas,Bruce?B:Oh,( )( )to each other loudly in the library.Or other people will be angry.A:can I( )( )muisc in it?B:No,and we can not eat ( )drink there.we must keep it ( ).A: you shouldn't eat or drink while____down the street