Cho tam giác abc vuông tại a, đường cao ah. Phân giác góc Abc cắt ah tại d. Kẻ dm song song với ac , m thuộc ab. Đường thẳng dm cắt bc tại n 1 chứng minh bmd = bhd và tam giác Bmh cân 2. Chứng minh tam giác adn cân và an là phân giác của góc HAC

People regarded The imperial Academy as the first university in Viet Nam. (passive voice) ____________________________________________________________________ John hasn't done any housework for a month. (ago) The last time John____________________________________________________ I thought the play would be interesting, but it was not really. (as) ____________________________________________________________________ I think this dish is very delicious, but she doesn't. (from) Her taste is__________________________________________________________ He is crazy about beach volleyball. (fan) He is_______________________________________________________________ Road users should obey traffic rules strictly. (obeyed)

/ Rewrite the following sentences without changing the meaning, using the word given 1. The smoke from factories will pollute the air. (turn into passive) ____________________________________________________________________ 2. I found the film exciting. (excited) ____________________________________________________________________ 3. Anna had long hair when she was at school. (used to) ____________________________________________________________________ 4. I spend 30 minutes walking to school every day. (takes) It__________________________________________________________________ 5. Today the temperature is 1 8 degrees. Yesterday, it was about 25 degrees. (so) Yesterday was_______________________________________________________

Write meaningful sentences using the following cues. 1. When/ charismatic/ lead singer/Chris Martin/ walk/ stage/ crowd/ erupt. 2. Although/ auditorium/ cold/ and/ sound/ poor/ audience/ really love/ concert. 3. As/ audience/ leave/ auditorium/ a lot/ people/ still sing/ favorite songs/ concert. 4. When/ rapping/ start/ New York/ new dances/ invent. 5. If you/ look/ fashion/ ‘Hip hop’ culture/ you/ can see/ choice/ clothes/ influence/ by/ way/ dancing.

Read the text and questions below. For each question, circle the letter you choose - A, B, C/ D. ROCK AND ROLL Rock and Roll came from jazz and blues during the 1950s. One of the first rock and roll songs was Bill Haley's "Rock Around the Clock." One of, the first very famous rock and roll singers was Elvis Presley. Others were Buddy Holly and Chuck Berry. Now, almost every country has many Rock and roll bands and singers. Sometimes performers call their music by different names, like "rap" or "punk". They sing and play mixtures of rock and roll and talking or other sounds. "Rap" and "punk" both came from rock and roll, or "rock music." Some fans who like rock music think classical music is boring. Many fans play rock music very loudly. They forgot about the people who enjoy soft music. Loud music can make these people nervous. Many fans also like to dance to rock and roll. When rock and roll was new, people had only records to play the music at home. After that we used cassette tapes and records. Now, we listen to music on compact discs. Most modern band and singers use companies to make videos of their songs. With videos, fans can see the performers at the same time they listen to the music. Making a recording and the video that goes with it is very expensive. 1. Bill Haley's "Rock Around the Clock" was one of the first ................. A. rock and roll songs B. rap songs C. blues songs D. jazz songs 2. "Rap" is a mixture of ……………….. A. Rock and roll B. jazz and blues. C. talking or other sounds D. rock and roll and talking 3. Which of the following isn't mentioned in the passage? A. Many fans like their rock music loud. B. Anyone who enjoys soft music dislikes rock music. C. Some rock and roll fans think classical music is boring. D. Many rock and roll fans like to dance to the music. 4. The first rock and roll fans listened to "Rock Around the Clock" on a ……….. A. video B. compact disc C. cassette D. record 5. Rock and roll began over ................years ago. A. forty B. twenty-five C. fifty D. one hundred