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 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 do not eat them .But we have lots of fun.We d()up a() some strange or horrible things. You must eat ---- food,or you will not be healthy.A.little B.less C.least D.the least We must not eat（ ）drink in the classroom. When we feel ____,we may not want to eat.A.worry or excite B.worry and exciting C.worried andexcitingD.worried or excited为什么选D? We don't want to eat because we are ____hungry.A.not a bit B.more or less C.not more bit D.a bit we must not food or drink in the classroom. You must not eat or drink in the libary.哪些英文是错的. We must eat or drink in the classroom.改为否定句怎么改 When we feel worried or excited,we may not want to eat.的翻译 When we feel worried or excited ,we may not want to eat改为从句 You must not eat or drink in tile reading room.(祈使句)_____ _____ or drink ill tile reading room what does this sign mean? it tell us ____ herea.to not eat or drink b.not to eat or drinkc.not eat or drink d.mustn't eat or drink 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? I must not eat any meat. We are not sure which restaurant _______tonight.　A.eating at B.for eating C.to eat at D.we eat we'd better_____too much .A.not eat b.not to eatc.don'teat