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Hai ô tô qua ngã tư cùng một lúc theo phương vuông góc với nhau, vận tốc của hai ô tô lần lượt là 40km/h bà 50km/h. Lúc ô tô thứ 2 cách ngã tư 20km thì 2 ô tô cách nhau bao nhiêu km? Cho rằng 2 ô tô chuyển động thẳng đều
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Jeans are (23) of clothing in the world. They are popular almost everywhere - in Japan, France, Indonesia, Canada and Brazil. Rich people and poor people (24) ______________. Young people and even some old people wear them too. Why are they popular? Who made the first jeans? In 1849 two men discovered gold in California. Men from the rest of the United States and other countries hurried there to look for gold too. These miners needed good strong clothes. A young man (25) ____________ Germany named Levi Strauss arrived in California in 1850, he went there to sell things to the miners. He saw that the miners needed strong pants, (26) ____________ . He used cloth that people tents from. He put rivets on the pockets to make them strong because the men put rocks (27) __________. These pants were very strong and lasted a long time. The pants became (28) __________. Later Mr. Strauss started making jeans from cloth from Nimes, France. “De Nimes” means from Nimes”. People called this cloth denim. Denim was popular in the fifteen century. 23. A. more popular kind C. as popular kind as B. the most popular kind D. the best popular 24.A. wear them B. wear it C. are wearing them D. are wearing it 25.A. which from B. who come from C. who came from D.whose from 26. A. because he began making them C. if he began to make them B. so he began to make them D. but he began making them 27. A. on their body C. in their pockets B. of their pocket D. in their body 28. A. very popular immediately C. very immediate popularly B. little popular immediately D. little immediate popularly

II. Rearrange the words to make meaningful sentences. 1. Solar energy/ in the world/ by many countries/ will be used/. → ……………………………………………..………………………………………... 2. to another/ How/ you travel from / will/ one place/? → ……………………………………………..………………………………………… 3. to save/ will reduce/ our energy/ the use of electricity/ We/. → …………………………………………..………………………………………… 4. traffic/ are/ rush-hours/ always/ There/ jams/ during. III. Complete the following tag questions. 1. There’s a new cartoon, ……………………………….? 2. They don’t want to sell their house, …………………………? 3. This machine never works very well,…………………………? 4. Your parents should stay in the hotel,…………………………? 5. We can’t go camping today,………………………..?

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