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Hai often ________ his face at 6:15.

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Water is of vital importance to all living things. Without it, all living things will surely die. We also use a great (16)______ of water daily in our homes, in factories, and in power stations. Most of this water is fresh water and it comes to us from reservoirs, rivers and lakes. The Earth's surface is (17)_____ by large areas of water which we call oceans and seas. If you have tasted the water from the sea, you will know that, unlike fresh water, seawater tastes salty. This is due to the (18)_____ of sodium chloride which comes from the land. Rivers carry it to the sea. Although neither salt nor fresh water has any color, the sea often looks blue (19)______ the sunlight. The reason is that sunlight is made up of many colors. Some colors disappear quickly in the sea but blue light bounces back or is reflected, to the surface. This makes the sea look blue. (20)______ , a stormy sky will make the sea look grey

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A major political party is ________ the campaign for tighter gun controls in the wake of last month’s shooting

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More emphasis should be placed on _________ alternative sources such as wind, solar energy, and tides

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The volunteers decided to make this Christmas ____ for their friends with disabilities

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Typhoon Damrey has caused extensive damage ____ houses, boats and crops in Vietnam

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Oh, we're going ___________ our weekend plans—I refuse to let a little rain stop us

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_______ you see Frank at the conference, give him my regards

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“If I ____ and my life depended on the solution, I would spend the first 55 minutes determining the proper question to ask, for once I know the proper question, I could solve the problem in less than five minutes." _ Albert Einstein

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I didn't think we would get __________ the last week of exams

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The cat washed ……….. in the pool

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I called _________ my dad when I noticed the leak in the dining room ceiling

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_______ a study on the origin of the virus, WHO scientists decided to publish their findings on a website

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When you develop a throat infection or catch a ______________ the glands in the neck swell up

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We are so accustomed to using the Internet ____ it seems almost natural, and we often forget that it's not.

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The government have ____ a campaign to relieve poverty and eradicate hunger in the local area

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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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Many adults in America and increasing numbers elsewhere take part in mentoring schemes. A mentor is an adult who provides support and friendship to a young person. There are numerous different (46)_____ of mentoring: passing on skills, sharing experiences, offering guidance. Sometimes the most helpful thing to do is just listen. Mentoring is open to anybody - no particular (47) _____ experience is required, just a desire to make a difference to the life of a young person who needs help. This may seem a difficult thing at first, but many people find they have a real talent for it. The support of a mentor can play an important part in a child's development and can often make up (48) _____ a lack of guidance in a young person's life. It can also improve young people's attitudes towards society and build up their confidence in dealing with life's challenges. For the mentor, it can be incredibly rewarding to know that they have had a significant influence on a child and helped to give the best possible (49) _____ in life. Indeed, it is not only adults who are capable of taking on this role. There is now an increasing (50) _____ for teenagers to mentor young children, for example by helping them with reading or other school work

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Although the chemist’s initial experiment failed, she stumbled upon a strong new material in the process

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Parents are always willing to lend a sympathetic ____ to their children when they have problems

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My sister and I ________ television in the living room now