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The system of checks and balances ensures that no individual has ________ to do as they please

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We had to give our passports .........  to the authorities

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The covid-19 pandemic brought widespread _______ to the global supply chain

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Linda, turn on the television,______?

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If he ............................. up earlier, he’d get to work on time

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_________, Tim recovered from the sickness quickly

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It has many letters and words. You use it to look up new words. What is it?

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My mother would rather that my sister ….. how to play the piano

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It is inevitable that tyres like that will .... when travelling at a high speed

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It is obvious that dinosaurs died ____________ millions of years ago

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No sooner ___ the feast will start tommorow

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After playing so badly, he walked off with his tail between his legs

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A skilled population is the key ____ a country's sustainable development and stability.

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 __________ we plant more trees, the air won’t be so polluted

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'I ....... top in the test,' he bragged

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Many groups worldwide are trying to develop vaccines that protect against a wide range of coronaviruses and prevent (26) _______ pandemic. These efforts have now been boosted by the discovery that some healthcare workers had pre-existing immunity to the SARS-CoV-2 virus during the first wave of the pandemic. During the first half of 2020, around 700 healthcare workers in the UK were tested weekly as part of a crowdfunded study called Covid Sortium. Most of these people, who wore protective equipment, never tested positive for covid-19 in PCR tests or developed covid-19 antibodies – proteins that (27) _______ to the outside of viruses, preventing cells from being infected. (28)_______ , when Leo Swadling and Mala Maini at University College London and their colleagues looked more closely, they found some of those (29) _______ tested negative had a protein in their blood that is linked to covid-19 infection, as well as T cell responses to the SARS-CoV-2 virus. T cells are (30) _______ of the immune system

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We will live in a(n) _________ house in the future

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The equipment had to be sent back to the manufacturer because it was damaged ------- repair

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People with normal, healthy ____ systems generally can fight off certain diseases without drugs, and might not even feel sick

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People of different countries have quite different life styles. We American are wasteful people, (25) _______ saving. Our grandfathers began this pattern, for nature’s resources seemed so plentiful that no one ever imagined a shortage. Within a few years of the first Virginia settlement, for example, pioneers burned down their houses when they were ready to move to west. They only wanted to have the nails for (26) _______ use. No one ever gave a thought to the priceless hardwoods that went up in smoke. We the people in the United States destroy many things that other peoples save. I (27) _______ this when I was living in Britain. I received a letter from one of England’s largest banks. It was enclosed in a used envelop that had been readdressed to me. Such a practice would be (28) _______ in the United States. American banks, (29) _______ the smallest, always use expensive stationery with the names of all twenty-eight vice-presidents listed on one side of the page

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Americans believe that the 50 states make ____________ a union that is greater than the sum of its parts