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Polar bears are in danger of dying out. (25) _____ some other endangered animals, it's not hunters that are the problem, it's climate change. Since 1979, the ice cap at the Arctic Circle where the polar bears live has reduced in size by about 30 per cent. The temperature in the Arctic has slowly been rising and this is (26) _____ the sea ice to melt, endangering the polar bears' home. The polar bears' main sources of food are the different types of seals found in the Arctic. They catch them by waiting next to the air holes seals have made in the ice. (27) _____ the bears are very strong swimmers, they could never catch seals in water. This means that the bears really do rely on the ice to hunt. Polar bears also need sea ice to travel. They can cover a huge territory and often swim from one part of the ice to another. They have been (28) _____ to swim up to 100 km, but when there is less ice, they may have to swim further and this can (29) _____ fatal to the bears. A number of bears have drown in the last few years and scientists believe that it is because they were not able to reach more ice before they became too tired and couldn't swim any further

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Not many students know the______ of learning English

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I speak English terribly. I wish I______English well

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Scientifically-minded people generally believe in cause-and-effect relationships _______ they feel there is a perfect natural explanation for most things

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We need to hire a nurse to care ____________ grandpa when he gets out of the hospital

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My grandparents are ........... in years, so they bought a condominium in Arizona

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In no way _______ to be associated with this project

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The ships had their days of …………………. in the 1840s and 1850s

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What ____ _when you injured your finger? - I was playing volleyball

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Hana and Lily are discussing the role of robots in the workplace.
Hana: “The appearance of robots at the workplace means increasing unemployment.”
Lily: “ _______. Employees can still be retrained to adapt to a new environment.”

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Professor Kimberly ____ three books since 2015, and she's working on her fourth

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Living independently means that young people have to be ____ for their own life

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John is having dinner at Linda's house.
John: “The boiled chicken tastes so good!”
Linda: “ _______ ”

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Scarcely had Jake ______ the book report when Alan came in

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 Your eligibility for the fellowship depends on the kind of research you do and the awards you -------.

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In order to increase productivity, we need to significantly improve our ------- of production

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The Amazing Race (TAR) is a popular reality TV show. Elise Doganieri and Bertram van Munster created it in 2001 and since then it has won many awards. In the show, teams travel around the world to different places. They try to arrive first, or at least not come last and they also try to win prizes on their journey. Every year, between 10 and 12 teams play on the show. There are two people in each team and they must know each other before they come on the game. For example, they can be husband and wife, parents and children, friends, etc. They have to travel to different countries and work together on the journey. The teams get some money at the beginning of the race and they use it to buy food, tickets, etc. They can use planes, trains, bikes or even skis to travel. The teams explore places they've never been to before and have games or ‘challenges’. These challenges have some connection to the country they are in and can be things like riding a camel, solving puzzles or eating a lot of food, for example. The teams often have to face extreme weather conditions during their journey. Many times they are outside in the rain or snow or in storms and get cold and wet. It's all part of the experience, though. Each week, one team leaves the show, and in the end there are only four teams. The first team to get to the last city on the journey wins the game. TAR is a very hard game and the teams become really stressed, but it's an amazing experience.
5. Which of the following difficulties does the writer mention?

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The manager needs an assistant that he can ____ to take care of problems in his absence

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The most amazing thing about this year’s Oscar winning film is that it was made on a shoestring budget

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But everything he had intended to pass ____________ to his 19-year-old daughter

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A style of art can go out of fashion and then ..... into favour fifty years later