Choose the best option (A, B, c or D) to complete these sentences.

If we ................... waste paper, we will save a lot of trees.

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The United States and China have (16)_______ a deal that allows the Chinese telecommunications giant ZTE to stay in business in exchange for paying an additional $1 billion in fines and agreeing to let US regulators monitor its operations. The fine comes (17)_______ Donald Trump stepped in to save the company after US regulators barred it from doing business in the US, an effective death blow for the company. In addition to the fine, a compliance team chosen by the US will be embedded at ZTE and the Chinese company must change its board and executive team. “ZTE is essentially on (18)_______,” said Amanda DeBusk, chair of the international trade and government regulation practice at Dechert LLP and a former commerce official. “It’s unprecedented to have US agents as monitors ... It’s (19)_______ a good precedent for this situation. ZTE is a repeat offender.” The news did little to appease critics. Senator Mark Warner, vice-chairman of the Senate select committee on intelligence, said: “It is the unanimous conclusion of our nation’s intelligence community that ZTE poses a significant threat to our national security. These concerns aren’t new; back in 2012, the House permanent select committee on intelligence released a report (20)_______ the serious counterintelligence concerns associated with ZTE equipment

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(1) _____ in technology have made a lot of changes to our everyday lifestyles, but one of the biggest has got to be how we read books. Since the invention of the e–book, there has been a significant change to our reading habits. Given the choice between taking a couple of heavy paperbacks on holiday or an e–book device like a Kindle, most of us, including our parents and grandparents, would unsurprisingly opt (2) _____ the Kindle. But what would our lives be like with no books at all? It’s a (3) _____ question. Some educational specialists are making predictions that in the future we won’t even see books in classrooms – everything will be done online! (4) _____ of the idea of getting rid of books say that there will always be a need for paper–based versions of materials. However, to be realistic, we have to accept that there is a (5) _____ chance that in a decade’s time schools and classrooms will be book–free! What do you think of that?

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Drone racing is an exciting new sport, that has become popular faster than (1)______ other sport before it. Pilots steer small and lightweight, but high-powered drones along courses with obstacles. They fly through gates and around flags at speeds of over a hundred miles an hour. They control the drones using VR-like headgear. Every drone has a camera (2)______ to it so that spectators can also view flights either on a big screen or with special headgear. The races take place either outdoors - in big stadiums, or indoors in old warehouses and sports arenas. (3)______ are short because the battery time of drones is limited. (4)______ drone racing started only a few years ago there are already international competitions that take place all over the world. In professional leagues, drone pilots compete for thousands of dollars. In March, the World Drone Prix was staged in Dubai. A 16-year old British teenager not only one the race but also received a prize money of 250 000 dollars. Television and other media have become aware of drone racing. ESPN, an Amercian sports channel, will be broadcasting international drone races starting this August. Races are also recorded and uploaded to YouTube and other video platforms (5)______ they can be viewed over and over again

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They were very keen to start work as soon as possible

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It's the kind of book you can just dip ___________

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Her car’s outside so I suppose she ________ have arrived.

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Try to study harder to catch ________ your classmates

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Once an animal ______ from the wild, it generally cannot be returned to its place of origin for fear of disease

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Michelson is at the travel agency. 
Michelson: “How much is the tour price?”  Travel agent: “ _______ ."

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It's getting dark, so we'd better make __________ camp

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It’s a foregone…………that Jim will be top of the class again.

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If you ________ fishing tomorrow, don’t kill the fish!

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Now that Thanksgiving has come and gone, it's time to dust ____________ the Christmas decorations

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Many people______ about the bad behavior of soccer fans in the town centre after the match

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_______ by a Danish physician named Ole Worm, this fabulous collection once took the world by storm

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Electricity and gas supplies have been seriously………by the floods.

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Visitors can ____ various types of “ao dai” costumes for free at the Ha Noi Global Cultural Center

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Mary wrote a letter of ____ to Microsoft yesterday after seeing their advertisement in the morning

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If every member of the top management team doesn't ........ this project, it's never going to work

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I've got to go - something has just come ___________ at home and I'm needed there