名词性从句里面，有主语从句，宾语从句以及表语从句，这些陈述句应该有一般问句形式，下列表述正确与否,如果不正确，应该如何表达一：宾语从句1. They knew that he is a child. 变为一般问句：Did they know that he is a child?2. He asked wh...
...mething.2.If she could sew, she would have made a shirt我的问题是：1.从句为什么可以使用与现在事实相反呢，我觉得从句与过去事实相反更容易理解一些，即if I had been you
和 if she could
have sewed?2.是不是因为从句表示的是一种状态，而状态可...
That's the time which she's found to be convenient for both of us to meet.请问句子中 "to be convenient" 是作为time的宾补吗? ,为什么 find sth adj 还要加to be?"for both of us to meet" 在这里是作为什么成分?
请问表示“心脏病”的 heart attack 可数吗？见到过下面这样的用法：He has three heart attacks a day. 他心脏病一天发作3次。He died of a heart attack during a routine operation. 他在一次普通手术中死于心脏病。从上面的句子来看，heart attack 应该...
...n plains of America, which caused
serious results. People couldn't breathe when they went outside and children
wore dust masks to school. The sky (was) often dark for days.Over
five million acres of land became desert during the Dust Bowl, forcing 200,000
people to leave their homes. The
disaster wa...
...一下，非常谢谢！I
remember the day during our first week of class when we were informed about our
semester (学期) project of volunteering at a
non-profit organization. When the teacher introduced us to the different
organizations that needed our help, my last choice was Operation Iraqi Chi...
大家都说could, might, would, should 为 can, may, will,
shall 的过去式，但在很多时候并不表过去，而是“更加委婉”，如you can't / couldn't
criticize him. 你不该批评他。can/could i help you? 有什么能帮你的。请问我想表达“过去你不该批评他”...