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1)Tính a) 12^8 x 9^12 b)45^10 x 5^3 c)(5^4 - 5^30)^3/125^5
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Write the correct form of the word in brackets Exercise 1: 1. The price of clay, supplies and equipment is a small percentage of the total cost to ____ pottery. (PRODUCT) 2. The second collection was more decorative, inspired by _____ and pattern. (EMBROIDER) 3. I’d like to thank everyone for helping to make this day ____ for us. (MEMORY) 4. These products are called lacquerware because they are ____ covered with lacquer. (DECORATE) 5. These fully ____ craftsmen amazed me with their product (TALENT) 6. These _____ live mainly on farming and marking incenses when crops are over. (VILLAGE) 7. The place has a rich long - lasting ____ (HISTORY) 8. These baskets are ______ from strips of bamboo. (WEAVE) 9. We are impressed by a wide _____ of lacquerwares in the showroom. (VARY) 10. My grandfather has devoted himself to many _____ events in our community. (CULTURE) 11. Do you know that ____ have to follow 15 stages to make a conical hat? (ART) 12. There are a lot of silk _____ such as scarves, ties and dresses in our shop. (PRODUCE) 13. They showed me a marble sculpture which was _____ made by hand. (SKILL) 14. Obviously, our handicrafts are in _____ with those of other villages. (COMPETE)

ai biết giúp mk vs 17: They last talked to each other two months ago => They haven't ............................................................ 18: The last time she saw her elder sister was in 1999 => She hasn't.................................................................. => She last......................................................................... 19; She hasn't written to me for many years => It's many years ............................................................ => She last ........................................................................... => The last time .................................................................. 20: It's two weeks since they cleanded their room => They.................................................................................. 21: It's over six months since John had his hair cut => John last ............................................................................ => John hasn't .................................................................... => The last time.................................................................

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