Trình bày tính chất hóa học của oxit. Mỗi tính chất viết 4 PTHH minh họa?

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1 He hasn't come back to his home village for over 20 years now. It's ..................................................................................................... 2 That's the strangest film I've ever seen I have never..................................................................................... 3 The last time we met each other was ten years old We haven't...................................................................................... 4 Mai said "It is raining heavily outside" Mai said............................................................................................. 5 Have you ever played a computer game before? Is this.............................................................................................. 6 France presented the Statue of Liberty to the United States in 1876. The Statue....................................................................................... 7 The water was so cold that the children couldn't swim in it The water was.................................................................................. 8 People should stop experiments on animals. Experiments................................................................................ 9 Ann said to me "will you do english test tomorrow Ann asked me.................................................................................................... 10 I didn't arrive in time to see her I wasn't............................................................................................................... 11 "Why don't you put your luggage under the seat?"He asked He suggested that................................................................................ 12 I haven't this kind of food before This is the first time......................................................................... 13 Many years ago she was interested in basketball Basketball........................................................................................ 14 You might fall if you're not careful Be......................................................................................... 15 The sister asked :"Are you hungry , Tom ?" The sister asked.................................................................. 16 The last time she went out with him was two years ago She wasn't............................................................................... 17 He learn english so that he can communicate with people from other countries He learns english in................................................................................... 18 I am often made to wash the clothes by my elder sister My elder sister........................................................................................ 19" Do you like playing soccer ,Ba ?'The teacher said The teacher............................................................................................. 20 The nurse covers the burn with ice . The ice helps easec the pain In order to...............................................................................................