已知cos(a+b)=5/13,cosa=3/5,求sinb

如果明天天气好,我们就踢足球.____ ____ ____ ____ tomorrow,we‘ll play soccer. 根据英文解释和首字母,写出单词的完整形式1、s ：collect and keep for future use.2、His mother r a lovely cat called Mimi.3、Be careful!The car n hit you. 1我不再想吃其他东西翻译————2we should think about what we can do__(keep)animals and plants from becoming endangered 3 The first step towards ____(protect)the environment is to try to throw away less rubbish 谈谈你的假期计划.I'm going to__________on holid aug.I'm going with my__________.We're going by________.W'e will start at_________.We will hare fun. 帮我完成以下几道英语题谢谢()This is a picture _____my computer A in B on C of ()Would you like to help me with my English Yes _________ A would love to B I'm love to C I do ()I think foreign languages _________scien subje A are as diffic （1）It‘s time for you ______(change）your diet now.（2）What _____ your parents _____(do) at this moment. 帮我完成几道英语练习题!完形填空.Every year people in many countries___1___English.Some of them learn at school.___2___study by___3___.What do these people___4___to learn English for?It is difficult to___5___this question.Some students 汉译英我母亲以前常把闹钟的叫醒时间（wake-up time)设置到早晨6：40（set for)格林本周到校的时间和上周一样早.（used to,as...as..）我现在吃早餐的时间与原来一样（usedto ,at the same time as ) 帮我完成下列英语题（1)There is a computer in your study.(2)There is a pen and two earses in the pencil -box.(3)there is some rice on the table.(4)There are so many books on the shelf.(将以上题分别改成否定句,一般疑问句.然后 （英语）完成下面各题一、根据所给情景写句子（1）你想知道冰（ice）是怎样形成的,你问老师：老师告诉你冰是由水形成的,老师说：（2）陈洁想知道Amy是如何收集树叶的,她问Amy：（3）我 一.请根据括号内错给词的适当形式填空1.（ ）（they） classroom is new,but （ ）（we）is old.二.请根据句意及首字母提示,补全句中所缺的单词2.Mr.King like taking photos and he needs a c____ very much.3.Mrs.Wang 按要求完成下列各题.1：My mother is (a math teacher).(对括号部分提问)2:Lucy works (in a car factory.)(对括号部分提问)3:She likes to meet pepole.(改为否定句)4：What does she do?(同义句转换)5：I like playing basketbal 按要求完成下列英语题1.______________________________(写出一般疑问句)No,I don't take a shower in the morning.2.I go home (at seven)in the evening?(对括号里的部分进行提问)_____________________you________home in the evening?3 帮我做下面几道英语题Scottsdale was a typical American suburb in the 1950s,with children going to each other's houses to play,or riding their bikes around the neighbourhood.But for Steven Spielberg none of these “normal” activities were This is an illness that can result intotal blingness if left untreated()A:leaving untreated B:left untreated C:leaving untreating D:left untreating 这题英语题这么做崖殖翘 这道英语题怎么做?谢谢!在网上翻译搜过,conduct、enforce 虽然各自意思挺多,但都含有“实施”的意思,问：当它们都表示“实施”时,有什么区别?请详细讲解并附有例句,谢谢! 英语题能做就做=.= My father didn't go to bed ( )I got back home last night.A.when B.until C.as soon as D.while答案给的是C,我认为是B结合一下时间状语从句, 英语题大家帮忙下you can't see any thing in the room 改为同义句 the boy in black shoes is my brother.改为同义句 this question isn't hard for us to answer .改为同义句 how much are the peaches[四个单词】 what about somethin 61.No one except Jack an Tom ___ the answer.A.know B.knows C.is knowing D.are known62.David is the only one of the people who ___ trouble making up their minds.A.has B.have C.are D.have63.Reading aloud ___ very important in learning a foreign languag 做调查用英语怎么说 做调查 英语怎么说? 做调查 用英语怎么说 调查用英语怎么说 据调查用英语怎么说? 他们进行一次英语能力情况调查 英语怎么说 对.进行调查 用英语怎么说 做一个调查用英语怎么说? 做一个成熟的男人,用英语怎么说?如题. 一个可爱的男孩用英语怎么说 不尽力去做某事用英语怎么说好像有两种说法、意思也不同、应该怎么说