求音乐：情态动词+have been 表推测 反义疑问句

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• 求音乐：情态动词+have been 表推测 反义疑问句
• should have done的反义疑问句是什么 是 shouldn't it 还是 didn't it 还是 wasn't it~should have done 可以表示 本应该做却没做或者可以表没把握的肯定推测 这两种表达方式的反义疑问句 有没有不同的语法规则should do 表应该做某事 它的反义疑问句是什么呢~~ 求高手解答 谢谢~~
• 改写英语句子.The boy walk about in order to keep warm .（改为同义句）There used to be low and dirty houses.(改为反义疑问句）Parents should allow teenagers to choose their own clothes .（改为含情态动词的被动语态）I don not know which mobil phone I should choose.（改为简单句）In 1519 a traveler went to American from Europe .He discovered the tomato .（合并为含定语从句的复合句）I have been to * _____ _____ _____ on the left.（同上）保护环境是我们每个人的责任.It is _____ _____ ____ _____ the environment.今天我离开家的时候卫生间的灯亮
• 高中情态动词题1,your sister must be at home,_______she?A,isn't Bdoesn't Cmustn't can't2,they had to catch the early bus,________they?Ahadn't Bdidn't Cmustn't Dcan't3,He must have been abroad,_______he?Ahaven't Bhasn't Cisn't Ddidn't请问关于情态动词的反义疑问句怎么判断,
• 求音乐：情态动词+have been 表推测 反义疑问句如：He must have been there,__________?He must have been there last night,_______?He must have been taken away last night,_________?什么情况下填 wasn't he
• 反义疑问句I don't think he could have done such a stupid thing last night,____?一个关于反义疑问句的问题,I don't think he could have done such a stupid thing last night _____?A.do I B.could he C.did he D.has he答案是C,求讲解.就是这一类有情态动词的反义疑问句的用法,针对高中的,
• 一个稻谷粮囤,上面是圆锥,下面是圆柱体,圆柱体底面周长是9.42米,圆锥的高是0.6米,
• 若无大气吸收,在垂直照射时地球上每平方米面积的太阳光入射功率为p0=1.8kw,已知太阳到地球的距离为r=1.5*10^11m,试计算太阳一秒钟总共放出多少能量?（保留一位有效数字）