判断函数有界性的技巧

( )We each ______the text and we are interested in itA read B have readC has readD had read 连词成句（1）machines /don't/the/please/touch(,)( )(2) thses/wear/please/giasses(!) (3)in/don't/the/books/write(!) (4)play/here/don't/ball/games(!) it interested us all,的同义句为什么是we are all interested in it.为什么用are?我想问的是interested不是用了过去式吗?那为什么不用were? DONT TOUCH THE MACHINES ,PLEASETHIS IS AFACTORY.THESEMACHINESMAKECRISPS.WHAT DOES THIS MACHINE DO,SIR?IT WASHES THE POTATOES. We are all interested in music.(改为同义句)We all ______ ______ ______ _______ music. 英语the怎么用 为什么Don,t touch the machines.要加the Please you don't please don't stay in Success is a journey ,not a destination!上面这个句子怎么翻译最好呢? I want our friendship as long as you love me意思 I want your ugly,I want your disease,I want your everything as long as It is free.I want your love什么意思,帮忙翻译下 life is a journey,not a destination,enjoy the trip 这句话是谁说的呢? There are more than 6,000 million peopel on the earth and about 2,500 languagesOf these languagesonly about twelve are used buy more than 50 million people…………………… great changes have been taken place in this city 去掉been 是不是也可以? 句型转换:1,Open the door,please.(改否定句）--- ---the door,please.2,NO talking in the library.1,Open the door,please.(改否定句）--- ---the door,please.2,NO talking in the library.(同义句转换）---- ----in the library.8,We can not a 将Open the door,please.(改成反意疑问句） could you please open the door否定句could you please open the door?（否定句）_____ you please _____ open the door? could you please open the door?改为否定句 This is a pen变为复数句,怎么变 great changes have taken place in family life,especially...great changes have taken place in family life,especially in the size of a family.我只知道这是个现在完成时,have加过去分词,还有take place是发生的词组,还有别的语法 Dinosaur lived on Earth more than sixty millon yeaes before human beings.中文是? Great changes have taken place in my hometown.同义句转换. 英语翻译 谁知道I want it that way的歌词的中文意思 英语翻译 I want it that way歌词(带中文） heavy是什么意思译成汉语是什么意思? heavy什么意思 heavy的意思中文,容易了解就好! 谁说过"there are more things in heaven and earth,horatio,than are dreamt o 帮忙写一篇关于TIME IS MONEY的作文,字数50以上.写的程度越简单越好.再作文下写出你主要论述的几点.作文100字以上。 Could you please open the window改成否定句