已知实数xy满足方程（x减2）的平方＋y的平方＝3

有一首英文歌《preety boy》的中文翻译是什么? Are you an English boy?Yes,I'm.哪一出错了? The Lis left Shanghai three days ago=The Lis have_____ _____from Shanghai for 3 days He has left Shanghai for three days already.这句子对吗?left 不是非延续性的吗 Our family _____for shanghai in three days.Awill leaveBleftCleavingDhave left我要又快又对的哦到底选哪个啊 Linda left Beijing three days ago改为同义句：____ ____from Beijing____ three days ago The two J---- are from Tokyo.The three C---- are from Shanghai After the concert they m_________the last bus,so they had to take a taxi. 形容一个人成材需要很长时间的成语 ______,I missed the last bus so I had to walk back m home yesterday(luck) 用适当形式填空The man ___David ____you just nowA.called,called B.is called,called C.called,was called D.was called,called Both of the children are in Grade 5.(改错） she received letters form her fans Both the adults and the children are beginning to realize ,the importance of studying . 改为否定句_____ the adults nor the children ____ beginning to realize ,the importance of studying . 将She received a letter from her pen pal in America yesterday改为同义句：将She received a letter from her pen pal in America yesterday.改为同义句：She （　）（　）her pen pal in America yesterday. We ( ) stay in the theatre for over two hours because of the heavy rainA)should B)could C)had to D)ought to选C为什么讲一下 形容很好的东西也有不好的一面用什么成语啊形容一个工作很负责的组织也有某些方面做得不很到位应该用什么成语啊? Last night,I couldn't find the hotel I lived in.I was (l 开头 )七年级下册（初中一年级下册）英语《课时特训》第十单元第二课时内容最好有这一课时的答案 我们老师都没怎么讲 所以都不懂 只好自学 表达一个东西有好有便宜的成语有哪些? She receeved a letter from her pen pal in America yesterday改同义句 my sister and there my brothers are she is连词成句 Do you know what time it is?Do you know what timeis it?哪一个才对?为什么? do you know what time_____?答案是the train leaves为什么不用the train will leave呢?因为没这个选择?the train leaves和the train will leave在这有什么不同吗? What do you know about the Olympic Games?不仅限于2008北京运动会用英文回答提前谢谢 It was almost at eleven o'clock__ my father returned home last night A that Bwhen He got a letter from his uncle last week.and the letter has more than 10000 words.的同义句 last night we ____ back home until the reacher left school?1 went2 did not go3 goes 4 has gone说出选择原因 I (received或took)a letter from my brother last week jack sent his sister a letter last week改为同义句 jack‘s sister —— a letter —— him last week横线处填单词 came at to we last school night nine连词组句 came,at,to,we,lest,school,night,nine.连词成句 连词成句 came at to last连词成句came at to last school night nine we came,first,the,to,hometown,heavy,my,last,snow,night连词成句