氢氧化钠和浓硫酸

David is the best student in our class.同义句David is ___ ___ ___ ___ students in our class our monitor is considered ___ the best student in our classAhaving been Bto have been Cto be Dbeing 短语have a picnic等于什么? 短语have our 短语have been in,have been to ,have gone to,区别是什么呀! Is it weird that I think Tom is hot It is disturbing to think that...to think 是啥语法结构?请举例. work hard like you blow me baby 为什么原英国殖民地国家像美国、加拿大等比较富有,而原西班牙殖民地国家像南美洲、菲律宾却比较贫穷?是偶然还是必然? Now I believe that the world is what you think it is的意思 （初二下册英语）I believe the world is what you think it is.谁可以回答一下：I believe the world is what you think it is.这一句话从语法上,what you think 和it is 在句中的成分是什么?这句话是什么结构?那么“Her I always believe that the world is___you think it is,so smile at the world and It'll be back空格填————Awhat Bthat 哪个为什么? the boy is clever ,but he doesn't work hard中文 The boy is very clever,h___ ,he doesn't work hard. Though he is clever,_____ he doesn't work hard.yet可以填吗?yet做副词讲有但是的意思,这里可不可以把它看作动词呢? Frank was clever,but he never liked to work hardFrank was clever,but he never liked to work hard.He often said to his friends,"If you work hard,you will make a lot of money,but it is not so good.I want easy work and a lot of money.That's the most int 用5,6,7,8,9五张卡片,任意组成的五位数是偶数的可能性是（） Mike can ( ) ( ) in our school music festival I do not like hard work "work"为什么不加" ing" It looks like hard work.It looks like hard work,but hopping actually lets the kangaroo conserve more energy than another animal could when running on four legs.俄．．一道旧托听力．．我听得是 哈平 ．．可是答案是hopping．． 我看看这些小卡片.英文[ ] [ ] [ ] .l'd like to look at the cards. 除了英国之外最多殖民地的国家除了英国之外曾经统治过最多殖民地的国家? 英国为什么能成为殖民地最多的国家?RT 谁能告诉我现在一些英国的殖民地都变成了独立的国家呢?是为什么变成的， 美国独立之前除了是英国的殖民地以外,还是哪些国家的殖民地?（例如...美国独立之前除了是英国的殖民地以外,还是哪些国家的殖民地?（例如阿拉斯加是俄国的,路易斯安那是法国的） The workers are busy in the factory.A.work B.to work C.working 非限定从句He has to work on sunday,( )he doesn't likeHe has to work on sunday,( )he doesn't like A on which time B which time C which D when 此处不可以选which time吗?我感觉这句话强调的是时间啊?不太明白, 1.my dad doesn't work in a factory.my mum doesn't work in a factory,either.(改为同义句)_______my dad _____ my mum _____ in a factory. He doesn't work today / He isn't working todayMy father is decorating the house .He (doesn‘t work /isn't working) today . Usually we (buy / are buying) clothes,but we(don't buy/are not buying) any clothes this New Year. 怎么选啊 求一句英语翻译 大体意思就是虽然时间一天天在过去 但是自己也在不断地成长 有牛津小学英语二年级上册MP3吗 浙江省用的牛津小学英语是哪个版本的,上海版的还是苏教意林版的?哪里有最新的牛津小学英语课本下载