a few years ago the belief became general that orange juice and milk should never be drunk at the same meal1.should never be drunk是一般过去的被动语态么?由情态动词should来体现be的时态?2.be drunk算是主要动词?be drunk是shou

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a few years ago the belief became general that orange juice and milk should never be drunk at the same meal1.should never be drunk是一般过去的被动语态么?由情态动词should来体现be的时态?2.be drunk算是主要动词?be drunk是shou

a few years ago the belief became general that orange juice and milk should never be drunk at the same meal1.should never be drunk是一般过去的被动语态么?由情态动词should来体现be的时态?2.be drunk算是主要动词?be drunk是shou
a few years ago the belief became general that orange juice and milk should never be drunk at the same meal
1.should never be drunk是一般过去的被动语态么?由情态动词should来体现be的时态?
2.be drunk算是主要动词?
be drunk是should never be drunk中的主要动词么~

a few years ago the belief became general that orange juice and milk should never be drunk at the same meal1.should never be drunk是一般过去的被动语态么?由情态动词should来体现be的时态?2.be drunk算是主要动词?be drunk是shou
a few years ago （时间状语）the belief （主语）became（这里became相当于系动词BE的形式） general （表语）
that部分做的是表语补足语
that orange juice and milk （补语中的主语）should never be drunk(谓语） at the same meal （状语）
这句话的意思是：几年前,一个概念/信念变的非常普遍,那就是橘子汁和牛奶不能在同一餐饭中饮用.
因为主语中用的是过去式,所以从句也必须用过去时.后面should部分是情态动词的被动语态,不是楼主所说的那样.
drunk只能算是从句中的主要动词,整句话来看的话,主要动词是became~

a few hundred years ago she was very p___ammong the students a few years ago the old man died______.A.for a few years B.since a few years C.a few years ago D.a few years l often read newspaper in the morning a few years ago=l ____ _____ read newspaper in the morning a few years ago a few years ago与 few years ago的区别和对错 The earth was once a sea of fire a few million years ago.的翻译. A big fire ＿＿(break)out a few years ago in the forest. 选择,The,Creens,MoVed,to,china,a,feW,years,A,before,B,ago,c,Iate Because of more and more cars,the air is getting much ------ than a few years ago in a few years和 after years ago的区别In a few years the small workshop had become a large factory 如果换成after years ago 之后 有什么区别吗？ A HUNDRED YEARS AGO这个表达对吗?A FEW YEARS AGO呢? a few years back 和a few years ago啥区别大神们帮帮忙 bridges,few,there,ago,were,a,50,years 翻译：after his father's death a few years ago. I_tennis.I stopped playing a few years ago. a few years ago前为什么不加介词inin a few years ago错在哪里. The scientists discouered lots of the lossns of dinosaurs in this area a few years ago翻译句子 组句子：1.different,the,is,city,quite,now 2.bribges,few,there,ago,were,a,50,years