there is a child in the room.改为复数句

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• There're ten bags on the tabie(ten划线!对划线部分提问!）______ _____bags____ _____on the table?this is an orange(改为复数句）____are some________ _____is todaytoday is monday(根据问句,完成答句!）
• We don't allow smoking in the reading room.请将上句改为被动语态,
• 1.I have a piece of red paper.(改为否定句)2.Are they under the chair?(作否定回答)3.My notebooks are under the chair.(改为否定句)4.Her key is on the desk.(改为复数句)5.His pencils are in the backpack.(改为一般疑问句,并作否定回答【分两个句子写!】)只限二十分钟,我没那么多时间!还有,我的积分已经不多了,可怜可怜我吧,只有五分啊,不过.对于那些专门学英语的人来说,这些都是小KISS啦!
• the diary wasn't there .(改为复数句)英语分册上的（六年级）
• All the children are having an English party now改为一般疑问句Jack is writing an email to his paren in the library对划线部分进行提问（划线部分是in the library）Is your father having a haircut now?做肯定回答Tony is looking for(寻找)his magazine in the dining room.对划线部分进行提问（划线部分是his magazine ）We are drinking in the pub.(改为否定句)
• This is a shirt .改为复数句
• She is watching TV now.(改为复数句）
• 用英语解释句子 The abacus is ancient invention还要用英语解释：3.The abacus is an ancient invention.4.The Indians invented the systen of numbers.5.Most of my answers are accurate.1.The invention of the zero helped people calculate more easily.对calculate more easily提问.2.People wrote numbers in many different ways.对in many different ways提问.3.You mustn't eat in the reading room.改为祈使句4.people,easier,for,work,machines,it,to,make.连词成句
• I'd like something to drink.(改一般疑问句)还有几题,希望尽快回答,Pat is going to the park tomorrow.(将tomorrow改为last Sunday)She would like a cup of tea.(复数句)What's the weather like today?(将today改为yesterday)He is at home now.(将now改为yesterday)
• the fat man likes jam改为复数句
• 1:there is a desk and a chair in the room.2:that man is a doctor 改成复数
• 将Wg铁,氧化铁,和氧化铜组成的混合物粉末放入100mL 4.4mol/L的盐酸中.反应完全后得到氢气896mL（标况）,生成的溶液中只有FeCl2,HCl和1.28g固体.把溶液稀释到320mL时,盐酸的物质的量浓度为0.25mol/L,求混合物中各物质是多少g~