. Choose the word (A, B, C or D) that best fits the blank space in the following passage. (1,5pts) In many Western countries, people (19) ……. Halloween on October 31. The word Halloween (20) …….. from All Hallows- Eve". It is the night before All Saints- Day, a religious holiday in some parts of the world. On this night, children dress up in special costumes, put (21) …………….. masks , and go door to door saying -trick-or-treat" to get candy. Many people decorate their homes with paper ghosts, black cats or witches to give their houses a (22) …………….. look. People also decorate their homes with jack-o-lanterns. They carve scary faces on pumpkins, and (23) ……….. candles inside the pumpkins. In some places, both children and adults can make (24) ……. of haunted houses. They all seem very excited about the festival. 19. A. celebrate​​B. reduce​​​C. save​​​D. exchange 20. A. gets​​​B. goes​​​​C. comes​​D. reaches. 21. A. in​​​B. off​​​​C. out​​​D. on 22. A. bored​​B. relaxed​​​C. careful​​D. scary 23. A. light​​​B. to light​​​C. lighting​​D. lighted 24. A. parts​​B. tours​​​C. turns​​D. prizes

Modal will to make request, offers and promises 1. Can you open the window please?  A. No, I won't mind. B. Yes I will. C. Sure. 2.  Could you help me? A. Yes I will. B. What seems to be the problem? C. Peter is not around. 3. Would you mind waiting a little bit? A. Yes, I'll wait. B. No.  C. Of course. 4. Could you fax this paper for me?  A. Sure. Who's faxing it? B. Sure. Where's the fax machine? C. Sure. How much is it? 5. Don't ever be late again. A. I will. B. I won't. C. Yes, sure.

đặt tính rồi tính : 266,22:34=.......... các bạn giải thích rõ gúp mình với i'm thanks

Theo em xe ô tô và xe máy khi chạy cùng quãng đường thì nhiệt độ xe nào cao hơn? Vậy chất làm mát ô tô và xe máy có giống nhau không?

Read the following letter. Decide if the statements from 13 to 16 are True or False and choose the correct answer (A, B, C or D) for the questions 17 and 18. Today almost everyone walking down the street has at least one mobile phone in their pocket. That is because many mobile phones are upgraded every year around the world; and most people are interested in changing their old mobile phone for a new one. There has been an estimated number of 90 million unwanted mobile phones in the UK alone! This mountain weighs around 12.000 tonnes, but only about 5°a of it is recycled. What makes us worried most is that mobile phones contain harmful chemicals which are released into the environment when phones begin to degrade and, in addition, large amounts of carbon dioxide are also produced during the manufacture of phones. It seems that the more modern mobile phones become, the worse our environment gets. 13. Mobile phones are modernized every year around the world. 14. Most people are keen on having a newer mobile phone. 15. About half of unwanted mobile phones in the UK are recycled. 16. Old mobile phones do no harm to the environment. 17. What is the passage mainly about? A. The modernization of mobile phones is necessary. B. There are more and more mobile phones in the world. C. The modernization of mobile phones make the environment worse. D. The manufacture of phones produces carbon dioxide. 18. Which of the following can be inferred from the passage? A. Modern mobile phones are worse for the environment than the older ones. B. Mobile phones are getting cheaper and more modern. C. People in the UK are very concerned to recycle old mobile phones. D. Used mobile phones can pollute the environment.

tính lim khi x->1^+,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Viết lại câu sao cho nghĩa ko đổi: 5; Ba is a skillful basketball player. ->Ba plays......................................................................... 6; Would you like milk for breakfast? ->Do................................................................................... 8;Are you interested in collecting stamps? ->Would you...................................................................... 10; I ought not to do my homework today. ->i don't.............................................................................. 11; How much do you weigh? ->How.................................................................................. 12; His brother cycles safely. ->His brother is.................................................................. 13; My father is a careful driver. ->My father drives............................................................. 14; What is wrong with her? ->What is ............................................................................ 15; What is your height? ->How................................................................................. 16; What is the matter with him? ->What is............................................................................

Cho tam giác ABC cân tại A. Chỉ ra yếu tố cạnh góc bằng nhau của tam giác ABC.Cho góc ABC bằng 65 độ tính BAC

Cho hai đường tròn (O; R) và (O’;R’) tiếp xúc ngoài tại A. ( R>R’). Vẽ các đường kính AOB, AO’C. Dây DE của đờng tròn (O) vuông góc với BC tại trung điểm K của BC. a) Tứ giác BDCE là hình gì? Vì sao? b) Gọi I là giao điểm của DA và đường tròn (O') . Chứng minh rằng : ba điểm E, I, C thẳng hàng c) Chứng minh rằng : KI là tiếp tuyến của (O')

tính lim khi x->1^+,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,