已知两个等差数列

ask for and give personal information. 问一句英语语法Ahh,32_____ a sandwich,he thought,as he sat down 33_____ (eat).what 33 to eat 为何填这个帮我讲一下它的语法谢谢! 请教下面这句的英语语法Verrazano,an Italian about whom little is known,sailed into New York Harbour in 1524 and named it Angouleme.上面的是新楖念英语三册17课中的.我不明白这句是怎么回事.我一般会这样写Verrazano 请教一句英语语法.Causing participants inexperiments to smile,for example,leads them to report more positive feelingsand to rate cartoons (humorous drawings of people or situations) as being morehumorous.as being morehumorous.请问as 在此 请教这句英语语法全句是：We had been wandering ,indeed,in the leafless shrubbery an hour in the morning;but sine dinner the cold winter wind had brought with it clouds so sombre,and a rain so penetrating,that further outdoor exercise was n A:what's in front of the house?B:Theres a car ____ ____ ____ it. in the center of 和in front ofThey walk or run across the road __________ cars.(in the centre of/in front of) a family friend said: 这里的family friend是什么意思 You must read a book before your watch TV .祈使句. why not ask your friend______some advice? It's ____a__ useful advice from his best friend .为什么要加a .advice 不是不可数么 、 Don't () the snake.I'll give you a hand. Tracy () being left alone in the house.选词填空,有两个选项be terrified of 和 be afraid of ,各应该选什么?两个短语有什么区别? I am afraid of being alone at home at night换句型：I am terrified of__ __ __ __(只填四个单词） What should you do once _____ alone?A.left B.being left为什么不选B,表示正在被独自留下是应该干什么 英语翻译 最终幻想7圣子降临完全版片尾曲safe and sound 歌词最终幻想7圣子降临完全版片尾曲,就是克劳德带着眼睛在马路上开,safe and sound 好像是冰室京介唱的一首英文歌,对的我再追加50分 求泰勒-斯威夫特的Safe and Sound 的吉他谱.带歌词的. safe&sound的歌词翻译是什么?还有这首歌表达的感情是什么? capital cities 的safe and sound的歌词谁有发一下谢啦. He went to Beijing.（用一般将来时） we'd better ask the teacher for advice,_______?(反意疑问句） you must catch the ball便祈使句怎么变? 将下列句子转换成祈使句.1.You must catch the ball.2.I don't think you should come in.3.You can'将下列句子转换成祈使句.1.You must catch the ball.2.I don't think you should come in.3.You can't do this.4.You mustn't play basketbll o to make our city cleaner这文章怎么写?至少5句话1.00之前务必回答 safe and sound伴奏 哪位高人帮忙用英语翻译一下以下这段文字?谢了~“达芬奇密码”,那不过是虚构的东西,虽然借用了圣经里面的人名,地名,一些历史事件,但是因为整部作品都是出于商业化,为了达到商业目的, 英语翻译移动电子商务（M—commerce）是未来电子商务新的发展方向,随着移动通信的发展,手机科技的不断提高,WAP上网已经逐渐成为被大众所认知的一种互联网接入方式.与电脑上网相比,手机 Let’s make our city beautiful.请问什么做宾补? 英语翻译it can be very useful ___ ____the meaning of "etiquette" There are some （ ） on the well【photo,photoes,photos】这三个中应该选哪一个?急X﹏XⅦ⑦ 动物保护组织保护的对像是什么动物?中国有这种组织吗?nbsp; He has girl friend ( )lives in Shanghai.A.who B.that C.which D.when选哪一个?为什么?