设xy的联合分布函数为

I'd rather read than see the film;the films seem __ all the time.A.getting worse B.to have got better C.to get worse D.to be getting worse Tony gets up late,so he _____ take a taxi to school.A.can B.have to C.has to D.must Millie took a taxi to school this morning.She wouldn it be late. They know the boy in blake.改为一般疑问句（ ）they（ )the boy in black? My sister studies hard .I should learn( ) her.A.from B.with C.for We are all here e___Lily.Were is she?Students shouldn't s___too much time on computer games. 英语问题at last my mother found him_____clever a clever boy两个都行吗 Are these our magazines?No,_________ I'm so thirsty.Shall we get___to drink? these restrooms are spared for employees become of sb造句,几个就行,并且翻译句子意思 Mary sings as _____as Kate是good还是nice还是well还是其他的,这中间填的与什么有关系?(不要长篇大论,简短说明) People have now ______ more about Paganini's techniques.为什么这题的答案是found out 不是find out 是不是现在完成时? Mary is as old as Kate.改为同意句 Mary has ___ ___ age ___ Kate. Kate is as old as Simon同意句kitty is ____ _____ _____ as Simon. 学历需中国外交部（Ministry of Foreign Affaris ）盖章?在当地地区政府（广东顺德）能否完成?我在海外工作,公司要求提供由中国外交部（Ministry of Foreign Affaris ）盖章的学历.请问能否在（广东顺 Some people doubt his belief ______ it is more useful to reform criminals than to punish them.A.that\x05B.which\x05C.what\x05D.whether我感觉 D才对啊, 英语翻译是一个广告词 I DON'T KNOW YUUR NAME,BUT NI SHI FRIEND ,I WISH THAT LUCK TO YUO!这是什么意思呀 glasses,shorts该用什么代词指代,it 还是them 如：Where ______ Tom’s shorts?---- I can’t see ____ Tom ________ a new look.用be、have的适当形式完成下列句子 This's teaching you English / This teaching you English.为什么多个is?请问前句为什么多加个is? 翻译：这是昨天讨论的问题 The old man has two ().A.son-in-law B.sons-in-law C.son-in-lows please,help me_____(find/look/see) Miss Wang.我觉得用find会好一点,但又不确定,就来问问. look around and find something等于哪个‘e’开头的单词? The mooncake ________ deliciousA.smellsB.smellC.is smelledD.is smelling on,mooncake,the,delicious,the,table,tastes He is _____(strong)in the class.This mooncake is ____(cheap)of all. Let's make friend是什么意思 7.5% of what number is 12? look his uncle （clena） his car over there.用动词的正确形式填空