I ____have been more than six years old when then acident happened .A:shouldn't B:couldn't C:mustn't D:needn't选?本题我一定不可能超过6岁为什么不是选择C 能不能解析解析

I ____have been more than six years old when then acident happened .A:shouldn't B:couldn't C:mustn't D:needn't选?本题我一定不可能超过6岁为什么不是选择C 能不能解析解析 I ____have another try if i can get another chance.A.have been meaningB.meanC.am meaningD.meant ____have you been travelling?since i was a boy.A Since when B When C for when 选择哪一个,为什么 He ____have been busy.I'm not sure.A.may B.must C.mustn't D.need I have been to the Great Wall twice(对twice进行提问）_____ _____ ____have ______ been to the Great Wall i have been more than rewarded!翻译成中文. . I have been thinking more about you 是什么意思 You have more interesting experiences than ____have.(my)应该填什么?为什么? They have been here since 2000.划since 2000.（对划线提问）____ ____have they been here? I am writing to ask you come to our class for a visit.I've ____heard that you havo been to Greece.In our Greece unit,we ____have been learning about it's rich culture and long histury.____Since you have visited Greece several times,so I would like to i wish you had been more interested in culture.为什么用had been 是什么时态? 求助英语词性变化填空词 open up harm bleed in a way heal 1New opportunities are ____ for investors who will enjoy more preferential policies2He ____to death after being shot in the stomach3Part of the changes here ____have been a distractio A:I like the____.____ ____have it?B:Yes,____ ____. I _____ pleased when I heard your resultsA couldn't be more B couldn't have been more All but one ____have just now.A:is B:was C:have been D:were.选哪个?为什么? How ____have you been to America A.much time B.many time C.much times D.many times ,为什么? Once more I am in Boston,__A____ I have not been for ten years. I would have been more believable if I didn't blush.