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“Do you know how this machine work?” 

“All you do is just ________ this button and it starts automatically.”

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Hoi An Ancient Town is an exceptionally well-preserved example of a South-East Asian trading port ____ from the 15th to the 19th century.

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My brother and I .............television every evening

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What time did you ___________London?

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A person who acts in a comedy is a __________ 

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Seldom___________ treated like that

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While I ____ for him to call up, he ____ a good time in the bar

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If you do not make a payment by the due date, a service ------- of two percent will be added

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

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My sister is studying hard ______her exam

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I put _____________ weight when I went away to college

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Mobile phones emit microwave radio emissions. Investigators are questioning whether exposure to these radio waves might (39) _____ to brain cancer. So far, the figures are not final. The precise evidence does not enable us to say in certain that mobile phones are definitely safe. On the other hand, recent research has not yet (40) _____ clear adverse effect associated with the prolonged use of mobile phones. Many studies are now going (41) _____ in numerous countries. Some of the results are contradictory but the others have shown an association between mobile phone use and cancer. However, these studies are preliminary and the issue need further, long – term investigation. (42) _____ the scientific data is more definite, it is advisable for people to try not to use mobile phone for long periods of time. Don’t think that hands free phones are any safer either. At the moment, research is in fact showing the opposite and they may be just as hazardous. It is also thought that young people (43) _____ bodies are still growing may be at particular risk

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..................., the nation's capital remained in Philadelphia, Pennsylvania.

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There are ways of getting ..... the tax rules

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 When vegetation is removed or burnt, the stored carbon is released back into the atmosphere as CO2, contributing to global warming

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His History teacher recommends that he ____ a project on World Heritage Sites

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

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The success of this project relies __________ everyone making an effort

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When it comes to children's schooling problems, both parents have to ____ responsibility

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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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When we see someone in need, it's natural to want to help. Whether it is a friend next door or a stranger in another country, we want to do something to ease the pain of others.