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Mr Brown is not a serious investor, but he likes to……..in the stock market

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Say goodbye to Ann now. By the time you return, she ______ for New York.

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Hardly ___________ a word when her son came back

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Keep all dangerous things out of children’s _____________

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Volunteers become well ____ of the problems facing the world

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They are not likely to ________ information during the current armed conflict

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Tom is still ........... his divorce, so he's been a little distant at work

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If you ________ fishing tomorrow, don’t kill the fish!

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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

The clock is _______ the teacher's desk.

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On the way back, we dropped ...... on my parents

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The foreign guests will ..... you next Wednesday afternoon

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Soon after announcing his retirement, Mrs. Vinho will be honored for her numerous ------- achievements

There ............ of stars in the sky.

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Nobody called, ________

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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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There are other problems which I don't propose to ____ at the moment

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Uneducated people, the kind ____ lack information about life, themselves, and the world, make poor choices in their life that take away from themselves and society.

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Unless we do something now, hundreds of plant and animal species will _______

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Let’s _____ to the zoo.

On New Year Eve, we watch fireworks and _____________ a wish.