括号里的were能改成was吗?为什么?The president elect promised during his campaign to help the poor who (were) mostly homeless.

括号里的were能改成was吗?为什么?The president elect promised during his campaign to help the poor who (were) mostly homeless. I knew you were trouble 的 were 能改成 are 如果不可以,那是为什么? She(was/were)short then 括号里该选什么? The picture whcih was taken(taken)by Yongliwen为啥替换The pictures （whcih were taken）(taken) by Yongliwen【括号里的taken是同义词转换】不明白的是为什么替换不用（were taken ）这道题的语法是什么. It was raining when they left the station. 能改成It rained when they were leaving the station.吗 I hope everything I have told you （will not have been forgot ）by next lesson.这句话能把括号里的词改成过去将来时或过去将来完成时吗?为什么?这句话怎么翻译? 一个英语句子 主语的疑问what the teacher had wortten on the board {were}keys to the problem括号里的为什么是{WERE而不是 WAS 为什么where were you last night 句子里用的是were ?you 不是单数吗 可以用was 吗 where was you last night.这样 请说明一下为什么 英语：一般过去时was 和 were 的用法1.什么时候用was ,什么时候用were2.在一般过去时里,was和were的使用是要看主语吗3.在一般将来时里was用于那些人称,were用于那些人称 The tsunami (in which )over 16.,000 people were killed was a terrible disater for human beings 能帮我把句型还原一下么?用最简单的句子 为什么要括号里要填 in 下面的句子能改成括号中的吗?一：I came here to see you.(I came here for seeing you.)二：We were very excited to hear the news.(用现在分词的形式：We were very excited hearing the news.或者用动名词的形式：We were very 这是《阿甘正传》开头没多久的一句. “She said they was my magic shoes.” 我的问题是,为什么这里是“they was”,而不是they were?这种用法对么?能不能改成they were?两种用法有什么区别? was(改成否定形式) were（改成否定形式） 请将括号里的词改成现在进行时, While my parents were watching TV ,my sisWhile my parents were watching TV ,my sister（ ）（Shout）to me loudLy 括号里填那个,为什么,写理由 was Shouting shouted not only (was he rude) but he was stupid as well.括号里改成 is he rude 对么 They were made ----(work) more than ten hours a day.如题.括号里应该填to work吗?为什么? 英语语法问题“...if this were possible,what does your bank hope to gain from it 在这个句子”if this were ...“ 里为什么用的是were而不是was 在我的理解中应该是was猜对啊