was 和 were是be动词的过去式,一般在“一般现在时”时态里用be动词的在对应的过去时态里就用was/were,一般单数都用was,复数用were(或者是am和is用was代替,are用were代替,两种时态下的转换);而did则是助动词does/do的过去式,一般现在时里用实义动词时在转变成疑问句等句式时需要借助did。主要考察所在的句子里有没有实义动词的区别。
第2个回答 2012-12-29
was 是AM的过去式 WERE是ARE的过去式 WAS是单数所有 WERE是复述所有 DID是DO/DOES的所有 who are you where are you from I am xxx I am from XXX what do you yo? I am a student
第3个回答 2012-12-29
全部都是过去式 was 是单数 例句 i was here 我来过这 were 是复数 we were out for dinner 我们出去吃的晚餐 did 指做过什么 who burned the house down? i did it 谁放火烧房子了? 我干的