i 've been waiting for you for an hour .为什么这个 have been 后面 带的是ing

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• 几道英语选择题,--（ ） I visit Lucy on Sunday,Mom?--Yes,you ( ).A.Must can B.May be C.Need need D.May need--Not only we but also she ( ) been to the Great Wall before.A.has never B.has ever C,have ever D.have everI like writing my original sentences( )the grammer I have learned.A.used B.use C.to use D.using第一个题目选B,为什么?第二个题目选A,为什么不选B,好像也可以?第三个题目选D.我想知道的是这个句子的结构成分,"using the grammer',在句子充当什么成分?答得好有奖励哦.呵呵.
• 每个选项都要!\(^o^)/~1.The question was not as simple as it____C____.A.supposed toB.supposed to beC.was supposed to beD.was supposed请问什么时候动词后面要加to或to be作结尾的词缀?2.What do you think of the campus life in our high school?Frankly speaking,I ___A___ so busy.A.never thought I'd beenB.wouldn't think I'd been(我知道这个为什么错)C.have never thought I'll be(我就选了这个)D.have never thought I was(我知道这个为什么错)
• 1."to"在什么时候是介词?什么时候是不定式?不是要问当是介词时就要加动名词 而是怎么知道就要填动名词2.例如“I have been to facing death"句中的"facing"为什么要用ing形式?3.如果是填空题,要在to的后面加词,要怎么区分是介词还是不定式?
• 1—— I＿＿＿＿to a party,but I’ ve got nothing to wear.—— Why don’t you have a dress made for the party?A.was asked B.will ask C.have asked D.have been asked 答案给的是D 为什么A 不行呢?2—— Tom,did Mr.Li join you in your dicussion?—— No,he＿＿＿＿,but he happened to have fallen ill.A.would like to B.will C.was to have D.was going to join 答案给的是C 为什么呢
• 请教一题英语时态题—you look so tired.—yes,i ___ football on the playground.答案是填have been playing,这我能理解,表示过去动作一直持续到现在,并将可能继续.但答案还有个was playing,为什么不能用这个呢,我为什么不能表示我刚刚再踢足球,所以现在很累呢?我用过去进行时表示对一个动作的描述,为什么不行呢?一楼大哥我就知道会这样解释,但是请看这个句子—hey,look where you are going!--oh,i am terribly sorry.i was not noticing.（出自5·3）这里的过去进行时明显也对现在有影响捏.
• 几个简单的词语用法不明白~求助~①---When will you be back,Pete? ----_____ a couple of days这个空为什么只能填in不能填for呢?②____so many people ill, i've decided to cancel the meeting.这个空为什么只能填With不能是after呢?③It's been snwing for 3 days and it's quite cold these days_____November这个空为什么不能用as呢?为什么用on呢?~④有on the phone这个用法吗?有in the phone/from the phone这些用法吗?~谢谢,感激不尽~
• I have been waiting for you scine at nine clock 后面要不要ago你们的意思是不加 at 不加 ago
• ----you've agreed to go ,so why are't you getting ready?----but i _____that you_____us to start at home.A.don't realize,want B.don't realize,wantedc.haven't realized,want D.didn't realize,wanted我想问这个题为什么是选D----______the sports meet might be put off.----yes,it all depends on the weather.A.i've been told B.i've told C.i'm told D.i told这个题为什么选A 不选其他的---i'm sorry to keep you waiting.---oh,not at al,i ____here only a few minutes.A.have been B,had been C.wa
• i 've been waiting for you for an hour .为什么这个 have been 后面 带的是ing
• 为什么没有have been being a teacher的用法?现在完成时和现在完成进行时的区别,在我理解无非是一个动作是否会持续下去而已像是,I've been painting the wall for 3 days 隐含的意思就是还没有完成,还要继续和 I've painted the wall for 3 days 隐含的意思就是已经完成了那为什么在涉及BE动词的时候就没有了?像是我做了一个老师3年了,为什么从来没有看到过I‘ve been being a teacher for 3 years?这种用法,这个动作难道不可以表示持续吗?虽然语法没错但似乎意思是不对的,求详解.
• 125.---I’ve been waiting for you for an hour!Where have you been?A.It doesn’t matter.B.Sorry about that.C.Be careful!D.What a pity!
• It’s really hard to tell you I’m