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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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One bad harvest could wipe _________ all of a grower's profits for the previous two years

We use a __________ to put the clothes in.

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Many women in Western society, aware of the power of names to influence identity, are aware that choosing how to identify themselves after marriage can be a significant decision. They may follow the tradition of taking their husband's last name, hyphenate their (25) _____ name and their husband's, or keep their birth name. One fascinating survey reveals that a woman's choice is (26) _____ to reveal a great deal about herself and her relationship with her husband. Women who take their husband's name place the most importance (27) _____ relationships. On the other hand, women who keep their birth names put their personal concerns ahead of relationships and social expectations. Female forms of address influence others'perceptions as well. Research (28) _____ in the late 1980s showed that women who choose the title Ms. give the impression of being more achievement oriented, socially self-confident, and dynamic but less interpersonally warm than counterparts (29) _____ prefer the more traditional forms Miss or Mrs

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I will award extra credit to anyone who goes ______________ the parameters of the assignment with their research

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Careful Surveys have indicated that as many as 50 percent of patients do not take drugs ____ directed

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My mother bought a ___________belt from a shop on Ba Dinh street

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The thieves busted the ATM and made _____________ the cash inside

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......... kids! Simmer down and get on with your work!

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The college prepares students ______ a career in business

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It may be a very easy way to _____________ money, but that doesn't make it right.

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Would you like to ....... with us some time?

Choose the letter A, B, C or D to complete the sentence: My name is Mai. I’m ……… grade 6.

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I need some time to mull __________ the options before I pick one

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He was useless while using the knife, so he cut _____

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Last Sunday, our volunteer team ____ a lot of food packages to homeless people in the flood-hit region

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He has been jobless and often has to ask his parents for mone

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Many a time___________ he wants to maary me

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The General Certificate of Secondary Education or the GCSE examinations for (30) _____ are the standard school-leaver qualifications taken by virtually all UK students in the May and June following their 16th birthday. If you come to a UK independent school before (31) _____ the age of 16, you will study towards GCSE examinations in up to 12 subjects. Some subjects are compulsory, including English arid mathematics, and you can select (32) _____, such as music, drama, geography and history from a series of options. GCSEs provide a good all-round education that you can build on at college and eventually at university. AS- and A-levels are taken after GCSEs. They are the UK qualifications most (33) _____ accepted for entry to university and are available in subjects from the humanities, arts, sciences and social sciences as well as in vocational subjects such (34) _____ engineering, and leisure and tourism. You can study up to four subjects at the same time for two years

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Our guests are from a _______ of society and so should reflect most point of views

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She is afraid of _________