Whatdidyoubuyyesterday.文法上是没有didbought这样的写法和说法的

whatdidyoubuyyesterday.(只能用过去式)

因为你用了两个动词,一个谓语动词were,一个动作动词bought,英语一个句子是不能有两个动词的,除非被动态或者进行时（+ing）.所以,这句话的提问,要用助动词did,带出buy.所以正确答案：whatdidyoubuyyesterday?

what__did__you__buy__(buy)yesterday?did已经体现了过去时，bought应改为原型buy

简略回答what就行了。如--Whatdidyoubuyyesterdaymorning?--Aschoolbag.（原句：Iboughtaschoolbagyesterdaymorning.）

Weboughtgiftsyesterday.我们昨天买礼物了。一般疑问句：Didyoubuygiftsyesterday?你昨天买礼物了吗？特殊疑问句：Whatdidyoubuyyesterday?你昨天买了什么呢？Whendidyoubuygifts?你什么时候买了礼物？

1.whatDIDyouBUY(buy)yesterday?2.uptonow,heneverLENT(lend)meanything.3.第三句我看了你的补充其实jdnt说的对你说得也对两者皆可但注意你的verb与"did"or"have"一定要搭配好4.he...

1.whatdidyoubuy(buy)yesterday2.uptillnow,hehasneverlent(lend)meanything3.Haveyouborn(born)thoseoldpapersyet4.hefought(fight)inflandersinthefirstworldwar5.theyhavealready...

1,Whatdidbuyyesterday?2,Uptillnow,hehasneverlentmeanything.3,Haveyouburnedthoseoldpapersyet?4,HefoughtinFlandersintheFirstWorldWar.5,Theyalreadyleft.6,whendid...

应该是：Whatdidyoudoyesterday?