蝉的发声原理

It is ___ ___whether we need his help. You should stop when the traffic lights are red.改为祈使句 what did you do when the lights went out?） I ____ to go there by taxi because it was too late.（have）How long has he been ________ for his friend?( wait )我要怎样才能获得驾驶执照?What do I ________ _______ ________ _______ ________ a driving licence 今天下午吉姆得去趟 you want to cheer up meet that Do you know a ways love you的意思. May the force be with you怎么读 what is the speed of to day's trains?翻译 英语阅读求解答What would it be like to fall at a speed（速度）81．Li Feng __________ A．is a Chinese Air Force pilot B．was born on March 7 C．has been a pilot for 38 years D．became a pilot at the age of 38 82．What happened to Li F ten-minutes' ten minutes' ten minutes ten-minutes这四个对吗?有什么区别 求ten minutes的歌词 ten minute,ten minutes,ten-minute,ten-minutes的区别在哪里? This is_____(she)book.she bought it five days ago 用所给词的适当形式填空 I borrowed this book two days ago.同义句 急I _ _ _ this book two days.必须按这种格式答题,三个空急 do you want that book的同义句 当别人对我说：you are much younger than I thought,我该怎么回答?如题 He looks younger than you are?这句话啥意思呀 这间教室有十米长,六米宽.用英语怎么说 英文.我比你年轻很多是 i am more younger than u还是much? 这个教室有10米长,6米宽怎么翻译? -Of course he behaved awfully,but _____he is much younger than you.-Of course he behaved awfully,but _________ he is much younger than you.-----A.-as a matter of fact -B.-after all-C.- above all -D.-in general 长十米,宽六米的英语怎么说同上 he is ( )younger than you,but he looks ( )tallehe is ( )younger than you,but he looks ( )taller than you哪个用many哪个用much?为什么! 这间教室长九米,宽六米.用英语怎么说? 现代造纸过程要图 My healthy living habits写一篇80字英语作文 He is much handsome than I.He is much more handsome than I. She runs much faster than me. 这两句为什么一句than后是主格I ,一句是宾格me?求解释谢谢 Today he feels muchA.iller B.badder C.B sader D.worse 改错 1:how many visitor are there today____________________________________2;lt's first day of march____________________________________3:mary from the UK____________________________________ 4;she don't go to school on saturday or sunday___________ She___(give) the book to me three days ago有ago的话,是用过去式还是完成时呢? 造纸的过程是怎样的. 要详细一点的,最好还有纸的来历