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Can we stop for a minute? I need to _____________ my breath, I can't run as fast as you guys!

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She looks very exhausted because she _______ all night

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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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Child development workers in Britain say that getting children to become library members can improve _______ standards

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What would you do if he............................ tomorrow?

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Don't ___________me as if I were an idiot!

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If it ........................... too much, I will buy the smaller one

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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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The weather generally ……………. quite hot in July and August

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Neither Jim nor his brothers _______ to school. Their father teaches them at home

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Young people are supposed to ____ themselves in several voluntary social activities

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It sounded like a pipe dream, but he was so enthusiastic it was hard not to get excited ______ him

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Mr. Aoki resigned ------- his position as communications manager for Western Europe since his health condition had suddenly deteriorated

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He said the government would ..... the necessary legislation to deal with the problem

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Many colleagues admire Kelly because she has found happiness in both ____ and private life

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Recent medical research into the new virus has dispelled fears that it is usually fatal

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The bus was so full that it could no longer pick ___________ passengers

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 _______ you _______ an English class tomorrow?

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So many young people set ____________ to change the world

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Everyone wants to reduce pollution. But the pollution (30) _____ is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. (31) _____, exhaust from automobiles causes a large percentage of air pollution. But the automobile provides transportation for millions of people. Factories discharge much of the material that pollutes the air and water but factories give (32) _____ to a large number of people. Thus, to end or greatly reduce pollution immediately, people would have to (33) _____ using many things that benefit them. Most of the people do not want to do that, of course. But pollution can be gradually reduced in several ways. Scientists and engineers can work to find ways to lessen the amount of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws (34) _____ require businesses and traffic to stop, or to cut down on certain polluting activities

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Many working women rely on relatives to help take care of their children.