improve their working conditions最后为什么加s

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• what else did you do on your last days off.这句话day为什么要加s,最后一个休息日应该单数啊
• 第一问：Then man【tried out】 several 【means】 to have those people get across what he said.请问这里的tried out和means分别是什么意思?=第二问：It's obvious that her refusing to see a doctor has ____(led in/resulted in) her illness woresening.请问led in没有导致,造成的意思吗?为什么答案是result in?=第三问：It's nice to see millions who had nothing but 【a record of】 misery and hungry _____（have/to have) the chance to improve their life and livig conditions.①请解释黑框中的a record of应该怎么理解.②请问为何横线处只能用have?我脑子
• what else did you do on your last days off.这句话day为什么要加s,最后一个休息日应该单数啊
• Much attention should be paid to improving people's conditions.请问此处为什么to后加的improving呢?
• when to start depends on the weather conditions为什么这里的depend要加s?
• 请教两个英文句子语法问题1：他看不出自己的错误（He can't see his own mistakes)为什么mistake后面要加s成为复数 是不是不加s这句子也算对2：You and I want to go和You and me want to go哪个对 只要是宾语就一律写在最后面吗
• The worse working conditions we are looking forward to ______ must have attracted the local government’s attention.A.see improved B.seeing improvedC.see improving D.seeing to improve这个第一see是怎么用的 做什么成份 为什么选择seeing 讲一下娘个现代分词在一起的用法
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• China's imports and exports reached 2.97 trillion US dollars in 2010,ranking second in the world.请问最后一句以ranking开头的作什么成分,为什么加ing呢?
• 1） When noon arrives,______ at least ten birds.a.we may shoot b.it is estimated that we will have shot2) What do you think of his proposal that some measures ______ to improve the working conditions?a.be taken b.will be taken3) I wondered _______ to come to the party.a.if he should have been asked b.if he should be askedc.should he been asked刚刚说错了。第二题的proposal是名词啊，哪里存在二楼和三楼所说的加should的句型？
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