Tiêu đề ĐỀ SỐ 1-15.docx ✅

word that best fits each of the numbered blanks. The high-technology industry was already around San Francisco. Intel was founded in 1968, and in the same year Stanford University built the first computer mouse. In 1970, Xerox opened a research center (18) ________ was located in Palo Alto. There were also other companies, like Hewlett Packard, and Fairchild, the world's first "semiconductor" company. (19) ________, in 1976, an (20) ________ student called Steve Jobs started a small computer company in his garage; he gave it the same name as the Beatles' record company: Apple. Very soon, more companies, like Seagate and Google, (21) ________. "Silicon Valley” had arrived. There was even (22) ________ primitive Internet connecting many addresses in Silicon Valley, called the Arpanet. 18. A. which B. where C. who D. whom 19. A. Then B. However C. Yet D. Therefore 20. A. electric B. electrical C. electronics D. electricity 21. A. happened B. appeared C. established D. came 22. A. kind of B. a sort of C. a lot of D. a variety of Read the following article and choose the letter A, B, C, or D to indicate the correct answer to each of the following questions. Hạ Long Bay, located in northeastern Vietnam, is one of the country's most famous natural attractions. Recognized as a UNESCO World Heritage Site, the bay is known for its emerald waters and thousands of towering limestone islands topped with rainforests. Tourists visit Hạ Long Bay to explore its stunning caves, go kayaking, and enjoy boat cruises that offer breathtaking views of the unique rock formations. The bay's beauty and rich biodiversity make it a must-visit destination for nature lovers and adventurers alike. Aside from its natural beauty, Hạ Long Bay has a rich cultural and historical significance. The area has been home to fishing communities for centuries, with many locals living in floating villages. These villages offer a glimpse into the traditional way of life, where people depend on fishing and aquaculture for survival. Additionally, archaeological discoveries suggest that prehistoric humans once inhabited the region, adding to its historical importance. One of the most famous caves in Hạ Long Bay is Sung Sot Cave, also known as the "Surprise Cave." This massive cave is filled with impressive stalactites and stalagmites, creating a breathtaking natural wonder. Another well-known attraction is Ti Top Island, which offers a panoramic view of the bay from its peak. Visitors can also explore Luon Cave by small boat or kayak, passing through a narrow entrance into a hidden lagoon surrounded by cliffs. These sites highlight the diverse landscapes and experiences that Hạ Long Bay has to offer.