Is that all?就是这个词组,不要任何的单词

Is that all?就是这个词组,不要任何的单词 what is that all about?请问这里的all about 看成一个词组,还是all 修饰about的? all that we can do is to do sth.不是缺谓语吗?that we can do 做all的定语,如果省去定语就是all is to do sth,is to do 是非谓语,请问这个句子为什么正确? all that can be done been done.why is all that?没有that不行吗? This means that your MP3 players can provide just about all your home and travel music needs.这个句子好在哪儿?翻译?好在哪儿就是 说 这个句子有什么语法点或者什么词组或者什么句型~ that is all right! OK.That is all. 翻译：is that all? that is all It is that all? That is all she That.is.all. Is that all 英语中带连字符的词组怎么用?Mary is so self-important that she makes me sick.self-important中的important为什么用形容词形式而不用名词形式?前提是不知道这个词组的意思. 有best all of 这个词组吗? that is all we want it ,that is all we need it听着大概是这个样子了 The impression that she makes on me is that she is friendly.请问make on有这个词组吗? that is all right与that is