为什么这里要用助动词do?There appeared to be no better way, _______? a. was there b. were there c. did there d. didn't there 这句话没有出现助动词did?

为什么这里要用助动词do?There appeared to be no better way, _______? a. was there b. were there c. did there d. didn't there 这句话没有出现助动词did? they have to study a lot,_____?A.don't you B.haven't theyhave不是表示有的时候才借助于助动词Do?这里的意思不是他们要学一些？那为什么要用DO。 I didn't go to the party,but I do wish I had been there的do wish何解?为什么要用助动词do呢? do在这里是助动词? 在一般疑问句前,什么时候用助动词,什么时候用系动词?比如:Do you have a pen?这里为什么用do,而不用那个系动词.那么Are there any sharks?那里有鲨鱼吗?这个句子里为什么用系动词提前? 为什么要用助动词?我一直弄不明白为什么要有助动词,如do,I do not love you.到底什么时候必须用助动词?什么时候不用? but There is no excuse for not doing your homework 这里do为什么要用doing I can't understand __________.A.what does Chrismas mean B.what Chrismas means.为什么不用A呢?怎么判断用不用助动词呢?比如说what do you mean为什么又要用助动词? i do love a party请问这里的do代表什么?加do意义何在?一般什么情况下要在肯定句中加助动词? 英语.how often do they stay uplate 为什么助动词英语.how often do they stay uplate 为什么助动词用do? can you do me a favor为什么这里用do where do they live?和where they live?哪个对,有什么区别应该是前边的句子对吧,do在句子里的有什么用?做助动词?如果是助动词,为什么要加这个助动词,不加不可以吗? That Didn't Go Well.这里为什么要加助动词did,不是有动词go了吗?I do not know... which books did you buy?为什么要用助动词do 是不是想宾语提问就用DO Do they did there homework last weekend?中“did” 为什么换成do 不是助动词后面跟动词原形的吗 Do you know there ___ a flower show in town yesterday?A.was B.were C.is D.are助动词后面要写谓语动词原型is 吗?还是用was? Do you need _____(ride)a bike to work?用正确形式填空这里的need是情态动词还是助动词？ There are a lot of things you can do.这里为什么能用there be句型它不是没有方位么