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Cotenkhongdat
2 năm trước
tính thể tích dung dịch NaOH 0,5M để hấp thụ hết 5,6 lít CO2 đktc để thu được dd hỗn hợp 2 muối Na2CO3 Và NaHCO3 có Tỉ lệ 7:3
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l. Use the words to rewrite sentences so that the meaning of the sentence doesn' t change 1. Keeping the environment clean is very important. - It’s .................................................................................. 2. They will show the time machine to the public when they finish it. - The time machine ................................................................................ 3. He was delighted to receive his aunt’s letter. - He was delighted that .......................................................................... 4. Old car tires are recycled to make shoes and sandals. - People .................................................................................. 5. I’m very sad that I wasn’t accepted in that group. - I’m very sad not ............................................................................... 6. It’s three years since I last spoke to her. - I haven’t .......................................................................................... 7. Tam doesn’t type as fast as she used to. - Tam used .................................................................................. 8. “ Please turn down the radio for me”, said my father. - My father asked ................................................................................. 9. Lan will be fifteen next week. - It is Lan’s .................................................................................. 10. How long is it since you used the pen? - When ...............................................................................? II. Arrange the following words to complete sentences. 1. stamps / a child / Minh / since / collected / was / has / he. - .................................................................................. 2. tomorrow / can / not / we / somewhere / I / so / working / go / am. - .................................................................................. 3. back / in / months / England / going / two / are / to / they. - .................................................................................. 4. information / entertainment / also / is / TV / only / but / not / bringing . - .................................................................................. 5. struggle / on / always / nature / home / life / at / is / the farm / with / a. - ..................................................................................

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