Chứng minh các đẳng thức sau (a+b)^2=(a+b)^2-4ab

A. LISTENING (2MS) I/ Listen and then choose the best answer..(1m) The most common traffic problem in cities around the world is traffic jams. Sao Paulo in Brazil has the worlds worst daily traffic jams. According to ...1...., the historical congestion record was set on June 1, 2012, with ....2...... kilometers of vehicle queues around the city during the evening rush hour. Some other big cities also suffer from serious congestion in the rush hour. The main cause of this traffic problem is the increase of the.....3...... in big cities. So the number of people using the roads has risen several times. The second reason is that the roads are narrow and sometimes are not good enough. Also, many road .....4.......have no respect for traffic rules. As a result, this problem is getting worse and worse. 1. A. reports B. newspapers 2. A. 219 B.295 3. A. population B. pollution 4. A. users B. drivers II/ Listen to the interview then decide if the sentence True(T) or False(F).(1m) 1. Tom Hanks is Nicks favorite film star. ........... 2. Tom Hanks is not a handsome actor. ........... 3. Tom Hanks has won three Oscars. ........... 4. Youve Got Mail is one of the biggest comedies of the 1990s. ........... B. LEXICO-GRAMMAR (3MS) I. Choose the best answer: (2.5ms) 1. Traffic accidents can be prevented if people____ the rules. A.obey                   B. remember C. go after D. take care of 2. You should look right and left when you go_____ the road. A. along            B. up                 C.down            D. across 3. Find the word that has different sound in the underlined part. A. watched B. closed C. danced D. walked 4. I___go on foot when I was in primary school. A. have to B. used to C. can D. was used to 5. I like the film very much! The characters are unforgettable and the_____ is gripping A. audiences B. style                  C.plot   D.acting .                      6. The film was so boring._____ , Jack saw it from beginning to end. A. Therefore          B. However              C Although D. Despite 7. In spite of having a happy_____ , the film begins with a terrible disaster. A. ending               B. acting                 C setting D. playing 8. I'm sure you'll find the film_____ . A. amuse            B. interested C amused D. amusing            

đặc điểm chung của ngành thân mềm là thân mềm ,khồng .................,có.................có lớp vỏ .............hệ tiêu hóa và cơ quan di chuyển đơn giản .riêng mực và bạch tuộc thích nghi với lối sống .............

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