We are watching Tom and Jerry on ________.

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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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I demand that he______immediately

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My friend, Lan is a ________ student. She always finishes homework on time.

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Tony and Bob are talking in their classroom.
- Tony: “We are buying Lily a graduation present.”
- Bob: “ _______ ”

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He can sing and dance very well, but he has never performed in public

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I was with Overseas Volunteers (OV) for a year after leaving university, and I was sent to an isolated village in Chad, about 500 kilometers from the capital N'Djamena. Coming from a rich country, I got quite a shock, as conditions were much harder than I had expected. But after a few days I got used to (11)_______ there. The people were always very friendly and helpful, and I soon began to appreciate how beautiful the countryside was. One of my jobs was to supply the village (12)______ water. The well was a long walk away, and the women used to spend a long time every day (13)______ heavy pots backwards and forwards. So I contacted the organization and arranged to have some pipes delivered. (14)______ these pipes were not really perfect, they still made a great difference to the villagers. All in all, I think my time with OV was a good experience. Although it was not paid, it was well worth doing and I would recommend it to anyone (15)______ was considering working for a charity

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You are late. If you______a few minutes earlier, you______him

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It's important to move ____ any shame or anxiety you're feeling about losing your job.

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It is highly ____ that factories should be moved to the suburbs to reduce the pollution rate in the cities

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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 writer and poet ______ coming tonight

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In the end, a debate will go ......... as a turning point in the campaign

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The store ran _____________ bottled water and canned food after the government issued the hurricane warning

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Once a site has been nominated and evaluated, it is up to the intergovernmental World Heritage Committee to make the final decision ____ its inscription

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I'll go shopping when I've __________ my chores

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Peter arranged a taxi to Victoria for me to ______________ a train to Gatwick and the last flight to Edinburgh.

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The picture he gave you is more valuable_______ the one he gave me

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Following a long -------, the insurance company was cleared of corruption charge

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The________of the ozone layer is not a good thing for the earth.

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See if you can ________Joe to do this share of the housework