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The electric light bulb ____ by Edison

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The girls were chatting ____ the boys were playing games

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It falls ......... me to thank you for all you have done for the association

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Mary wrote a letter of ____ to Microsoft yesterday after seeing their advertisement in the morning

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We ____ Lisa recently

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After 3 hours of argument, my mother grudgingly admitted that she was wrong

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They are going to_________ their golden wedding anniversary next week.

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It's an interesting idea and I thought he put it ___________ well

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A lot of young people don’t know how the Internet _______

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Owing to strong competition in the industry, the new smartphone designed by Vamiant Electronics must be marketed---------

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Amanda was upset by his rejection, but decided to _______ the past behind her and get on with her life

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Many students in this high school are not familiar _______ ICT assessment tools

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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 good knife is probably one of the most useful things you can have in a kitchen

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It is back-to-school time in much of the worlD. Calm, easy mornings are replaced with busy, hurried ones. Children wake up early and get ready for school. Many parents are also getting ready for work, helping their children and preparing food for lunches. But don't forget about breakfast! When things get wildly busy in the morning, some people (32)_____breakfast to save time. But that may be a big mistake for students. That is the finding of a 2015 study from Cardiff University in Wales. Researchers there looked at 5000 9-11 year-olds from more than 100 primary schools in the U.K. They looked at what the students ate (33) _____ breakfast and then their grades 6 to 18 months later. They found that the students who ate a healthy breakfast (34) _____twice as likely to perform above average in educational activities. The researchers also found that unhealthy breakfasts - such as potato chips or a donut did not appear helpful to educational performance. A good breakfast is not just helpful for school-aged children. We all may gain from eating something healthy first thing in the morning. A study from researchers at the University of Toronto in Canada found that a breakfast rich in protein and complex carbohydrates (35) _____ performance on short- and long-term memory. Carbohydrates and protein are especially important because (36_____a major effect on long-term memory

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

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

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I ….. sorry. I …late.

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Mackley's online Business Ethics journal ------- publishes articles by well-known social-psychologists.

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Thousands of people use the ……of footpaths across these hills

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In developing countries people are ____ into overcrowded cities in great numbers