问一个英语语法,1) Bread and butter ____ what Americans usually have

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问一个英语语法,
1) Bread and butter ____ what Americans usually have for breakfast.
A) are B) is C) was D) were
答案是选B）is
但是我看到有语法讲解上曾说过,名次＋and＋名次,如果没有定冠词就用复数形式,那就不应该选B了不是吗?所以,到底是特殊用法还是什么问题……拜托帮帮忙,我对语法什么的一窍不通啊……

你说的应该是这个情况：
当and 与 both…and …连接两个主语时,一般用复数的谓语.但如果由and并列的两个主语是指同一人时,此时后面一个主语没有冠词,其谓语用单数,表示一个人具有双重身份.若后一个名词前有冠词,则表示两个人,谓语则用复数.
eg：1.The teacher and writer is giving the boys a very wonderful lecture .
2.The teacher and the singer are talking in the hall.
但是你问的这道题,我觉得吧,两个都是不可数的,而且,在句子里表示的是一个概念,就是“早餐上经常食用的”,所以用的是单数形式.

问一个英语语法,1) Bread and butter ____ what Americans usually have bread and butter _______what the americans usually have for 1.Bread and butter( )what american usually havefor breakfast bread and butter is usually my breakfast 请问一个关于Bread and butter 1、The bread and butter is nice. bread-and-butter是什么意思? 1 When I stayed in America,I found bread and butter( )what A butter and bread 主谓一致 the bread-and-butter tool Americans usually have breakfast and dinner at __ Where do Americans usually have breakfast and dinner?