1.Jenney___have been here now.I wonder what's happened to her .A must B ought to C needn't D mightthe key is B2.We invited her to the party,but she___refused.A directly B simplythe key is B3.The lady said she would buy a gift for her daughter with the ___A 20 dollars remained B remaining 20 dollarsC remained 20 dollars D 20 dollars to remainthe key is B4.____different life today is from___was fifty years ago!A What a;what B How; whatC What;what D what a; howthe key is B帮我写出ＷＨＹ，３Ｑ～
热心网友
1。ought to have done=should have done本来应该做而没有作 must have done 表示对过去情况的肯定猜测，might have done表示对过去情况的猜测，但是语气很弱need have done表示需要做而没有做，从题目的意思来看，珍妮本来应该现在就在这里，我想知道她没来究竟发生了什么事，所以答案选b2。 ,absolutely，完全地，绝对的 ,径直地，坦率的，我们邀请他参加聚会，但是他却拒绝的了3、remaining 剩余的，剩下的，做前置定语，而left 作后置定语The lady said she would buy a gift for her daughter with the remaining 20dollars/with 20 dollars left4。我们可以把它变成一般的陈述句，然后再进行感叹句的变换life today is different from ____was 50years ago很显然这里需要的是名词性从句what was 50 years ago ，what 做was 得主语同时引导名词性从句作from 的宾语，然而how 不能作主语，只能引导状语，所以排除所以把它变成感叹句，强调50年前和现在生活的不同，既然是强调different ,所以要用how ,所以就变成了How diffferent life today is what was 50 years ago。
热心网友
其他的题目我看就不用我多说了至于第三题这是典型的动名词做定语UNDERSTAND?IF NOTLOOK UP MORE DETAILS IN A GRAMMAR BOOK GOOD LUCK
热心网友
mained 只能做谓语，不能做定语！
热心网友
remaining作定语修饰20dollars
热心网友
第3题是很难啊 是不是THE的缘故啊 我猜的啊
热心网友
1.ought to have done表示本应该做而没做。 mply有真诚的的意思，directly太不礼貌了3.不会解释，我是靠语感。4.你把它变成陈述句Life today is different from ...因为修饰different而不是名词所以前面用how，后面是代词所以用what