这个情况下用It's not 还是this is not呢?例句,NO,it's not my sister,she ‘s my friend.问下老师,想表达,这不是我的妹妹,是用this is not my sister 还是it's not my sister?

这个情况下用It's not 还是this is not呢?例句,NO,it's not my sister,she ‘s my friend.问下老师,想表达,这不是我的妹妹,是用this is not my sister 还是it's not my sister? it's not easy+?是to do还是doing或者什么情况下to do什么情况下doing 描述某个意思时,什么情况下用 it's ,什么情况下用 there's 如it's my fault 还是 there's my fault What's this?的答句为It's a 什么还是It's 什么.（可数名词情况下） 英语单词“the”在什么情况下读∕thi: it is 缩写Yes,it is 这句话中“it is”可不可以写成缩写 “it's”?如果不可以请说明原因,在什么样的情况下可以用缩写.It isn't a German car.这句话中的“It isn't”和It's not a German car.中的“It's not ” it is fair 这个句型一般什么情况下用? 不起作用 it's not working 还是 it's not work 还是 it doesn't work? You'd better not go on adventures alone.It's too dangerous.为什么adventures在这里是复数,什么情况下可数,什么情况下不可数? It's not wise you ,用for 还是ofIt's not wise you ,处应该用for 还是用of will you 句型回答方式在没有will not的情况下,用can not、need not、do not还是must not? it is not right________you ______other's homework.A.of,to copyB.for,to copy选哪个,为什么要专业,not right做什么用,还有哪种情况和这个一样,举个例子. 英语什么情况下用It's?回答的时候很多都是It's………… 什么情况下回答直接是用Is……? 请问是it was not until 1990s还是It was not until the 1990s it is not的缩写是it isn`t还是it`s not? 翻译下公平这个单词怎么说.It's not _____(公平）for him to do all the work. It's wrong [ ]not to write him a letter.[ ]用of sb还是for It's not working系表还是进行?