Reading 2. Choose the correct answer to each of the following questions. Mexico City is growing quickly. In 1970, the city had about 9 million people. Now it has over 17 million. There are not enough jobs and houses. Large families have to live together in small homes. Many homes do not have water and electricity. The Mexican government is working hard to make life better in the city. All around the world, large cities have the same problems. One of them is air pollution. Mexico City is dirty and unhealthy. Cars are one reason for the dirty air. Many Mexicans now have their own cars and drive in the city. The factories in the area also cause air pollution. These factories put a lot of smoke into the air. It is not easy to clean up the air in a large city. The government has to make new laws, and everyone has to help. 1. Large families have to live together in _____________. A. big houses B. modern houses C. comfortable houses D. small houses 2. Why are cars a reason for air pollution? A. Mexico City has pad air. B. Factories put a lot of smoke into the air. C. Many Mexicans have their own cars and drive in the city now. D. Price of cars is cheap. 3. The word “them” refers to ______________. A. cities B. problems C. jobs D. houses 4. Now, the Mexico’s population is ________. A. nearly twice as many as one in 1970. B. more than half of one in 1970. C. less than twice times in 1970. D. less than in 1970

$\frac{2x+\sqrt{x}-4}{x+2\sqrt{x}}$ -$\frac{\sqrt{x}+1}{\sqrt{x}+2}$ a.Rút gọn B b.Tìm x nguyên để B nhận giá trị nguyên

I haven’t gone to school for 4months because of COVID-19 ->It ->I ->The gấp ạ, xin mng

I haven’t gone to school for 4months because of COVID-19 ->It ->I ->The gấp ạ, xin mng

III. READING: Reading 1: Read the passage then circle the letter A, B, C, or D of the correct word or phrase that best fits each of the numbered blanks. Some people ask me if I like (1) _______ in my hometown. The answer is certainly ‘yes’. The simple reason is that it has lots of interesting places. If you want to widen your knowledge of the past, you can go to the museum. It’s a (2) _______ building, with a big collection of valuable artefacts. There is also a craft village in my hometown. There, the villagers make drums. Their drums are (3) ________ famous in the local level, but also nationwide. You can visit the old workshops, where drums 4) _______ in the traditional way. Some of them are huge! Another attraction in my hometown is the local library. It’s an educational place where anyone can borrow books and take them home to read.Besides, it also has a reading club. My hometown is also a cultural centre, with many traditional festivals and activities. I love it very much. 1 A. live B. lives C. living D. was living 2: A. historic B. historical C. history D. histories 3 A. until B. but now C. both D. not only 4 A. be still made B. is still made C. are still made D. has been still made

Dùng một thuốc thử duy nhất để nhận biết các dung dịch sau

IV. Complete the sentences with correct tense of verbs. 1. The interviewer asked me what I (can) do if I were offered the job. 2. Mandy asked me if the boys (read) the book at present. 3. The manager told me that I (travel) from place to place thefollowing month. 4. They said they (never/ be) to Scotland until last year. 5. Jason and Victoria told me they (do) their best in the exams thefollowing day. 6. I wondered why Nick (not go) to New York the summer before. 7. John told me that there (may) not be dessert after dinner. 8. She asked me if everyone (must) contact the Magic Number inemergency situations. 9. My mom said she (be) going to visit a friend of hers in London. 10. Shannon said that she (need) to take care of her baby.

Ko cần lm hết cũng đc ak:))) 161 a abrupt b appliance c delta d behavior 162 a behave b border c destroy d erupt 163 a disaster b drill c fixture d flashlight 164 a storm b tornado c volcano d border 165 a extensive b highlands c Celsius d trust 166 a battery b can c park d collapse 167 a Celsius b expect c extensive d funnel 168 a fixture b hurricane c lift d strike 169 a border b cyclone c destroy d forecast 170 a laugh b highlands c flashlight d although 171 a volcano b damage c earthquake d teenager 172 a predict b destroy c behavior d preparation 173 a highlands b flashlight c strike d volcanic 174 a bureau b funnel c hurricane d erupt 175 a earthquake b path c southern d thunderstorm 176 a highlands b flashlight c forecast d disaster 177 a fixture b trust c destruction d thunderstorm 178 a roller b tornado c volcano d border 179 a typhoon b roof c kangaroo d look 180 a destroy b disaster c Celsius d trus

Cho em hỏi tại sao lại có công thức này vậy ạ ?_? %A = %T = %A1 + %A2 /2 = %T1 + %T2 /2= ... NL: Cho em xin cách để có thể học thuộc Sinh 9 một cách nhanh và dễ hiểu nhứt được khum ạ (Y/c: Bắt buộc phải trả lời phần NL ạ :(((

•𝗩ẽ 𝗮𝗻𝗶𝗺𝗲/𝗰𝗵𝗶𝗯𝗶/đậ𝘂 𝗺ầ𝗺/… 𝗰á𝗰 𝘁𝗵ứ đ𝗶 𝗻è 😚✨ [𝗠ộ𝘁 𝗰𝗵ú𝘁 𝘃ề 𝗯ả𝗻 𝘁𝗵â𝗻 𝗺ì𝗻𝗵: 𝗠ì𝗻𝗵 𝘁ê𝗻 𝗹à 𝗧𝗵𝗶ê𝗻(𝗻𝗮𝗺;-;) 𝟮𝟬𝟬𝟴, 𝗺𝗼𝗻𝗴 đ𝗰 𝗹𝗾𝘂𝗲𝗻 𝘃𝘀 𝗺ấ𝘆 𝗯 𝗻è=)🐈✨. *𝘁𝗿𝗮𝗻𝗵 𝗯ê𝗻 𝘁𝗿ê𝗻 𝗹à 𝗺ì𝗻𝗵 𝘃ẽ 𝗻ê𝗻 đừ𝗻𝗴 𝗿𝗲𝗽𝗼𝘀𝘁, 𝗰𝗵é𝗽 𝘁𝗿𝗮𝗻𝗵 𝗵𝗮𝘆 𝗰𝗼𝗽𝘆 𝗻𝗵é:𝘃..] 𝗖𝗵ú𝗰 𝗺𝗯 𝗯𝘂ổ𝗶 𝘁ố𝗶 𝘃𝘃🕯👀 #𝗵𝗼𝗶𝗱𝗮𝗽𝟮𝟰𝟳 #𝗻𝘂𝗼𝗰𝗺𝗮𝗻𝟮𝟬𝟴 #𝗴𝗼𝗼𝗱𝗲𝘃𝗲𝗻𝗶𝗻𝗴 *𝗩ô 𝗻𝗰 𝗰𝗵ơ𝗶 𝗻è*