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trucanh
2 năm trước
Nung 10(g) hh gồm MgCO3, CaCO3, Al2O3 cho đến khi khối lượng không đổi thấy thoát ra 2,1952 lít khí (đktc). Tính m chất rắn thu được spu? ^^ Cần gấp nha mn:)))
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Exercise 4 : Rewrite the following sentences 1/ "You'd better do morning exercise, Minh", said I.  I advised ............................................................................................................................. 2/ "I won't lend you any more money !", she said to me.  She refused............................................................................................................................... 3/ "Don't hurry !", my mother said to me.  My mother told......................................................................................................................... 4/ "Don't go too near the elephant !", his father said to him.  His father warned him ............................................................................................................... 5/ "Keep silent !', the teacher said to his pupils.  The teacher ordered ..................................................................................................................... 6/ "I think you'd better not go to work for a few days, Cathy".  I advised ..................................................................................................................................... 7/ Finding a good job nowadays is difficult.  It's ................................................................................................................................................ 8/ Lying in the sun is pleasant.  It's ................................................................................................................................................ 9/ "Please don't tell anyone what happened.", Ann said to me.  Ann told me ................................................................................................................................. 10/ "You'd better not lend her any money, John", said Jack.  Jack advised ................................................................................................................................ 11/ " I won't let anyone know your address", she said to me.  She promised ............................................................................................................................. 12/ "Don't forget to order the supplies I need". My boss reminded me.  My boss reminded me...........................................................................................

Exercise 3 : 1/ The man spoke too fast for us to understand.  The man didn't .................................................. 2/ She is very old so she can't dance beautifully.  She is too ......................................................... 3/ Your writing is so small that I can't read it.  Your writing ..................................................... 4/ To learn English is easy.  It is ............................................................................................. 5 / They think speaking French is difficult.  They think .............................................................. 6/ It isn't easy to start looking for a job at his age.  Starting ......................................................... 7 / He is very old, so he can't apply for that job.  He is too.......................................................... 8 / They ran too fast, so we couldn't catch them.  They ran too ..................................................... 9 / She spoke too quickly for me to understand.  She didn't .......................................................... 10 / Mrs Hoa was too weak to go to work yesterday.  Mrs Hoa wasn't ...................................... 11/ It is too cold, so we can't go out.  It is .............................................................................. 12/ He couldn't move the piano because it was too heavy.  The piano was ............................ 13 / Mrs Hoa was the last person who came to visit him.  Mrs Hoa........................................

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