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You may think that your genes determine your longevity, but the truth is genetics account for a maximum of 30 percent of your life expectancy.

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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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My mother told me to carry a very _______ suitcase for my first field trip

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They were trained in the most prestigious hospital, _______ ?

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 It’s twelve o’clock, Nam. Let’s________ home.

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Winds up here reach 80 miles an hour; the tin, the roofs, they ..... every now and then

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There is a ____ shortage of food in the disaster-stricken areas of ASEAN

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Visitors to the laboratory facilities must show ------- a valid driver's license or a personal ID card to security before entering.

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____ as it was at such a time, his work attracted much attention

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Two students are talking with each other. Complete the exchanges with the best answer:
A: "I'm going to take a course in first aid skills." – B: “____”

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______ he arrived at the bus stop when the bus came

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Falsely arrested and charged, in a strange country and all alone, Mark was truly at his _______’ end

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 A: "The regional authorities failed to provide the poor with essential services such as accommodation, fresh water and electricity." - B: “____"

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In the preparation of fibrous material for production uses, stiff woody fibers from plants ............. fibers from animal sources.

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He is always busy. He has______ time to relax

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– “________a nice T-shirt, Trang!” - “Thank you.”

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If there is any money ------- in the budget, we need to modernize our company's present system of international communications.

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So beautiful _____ that the Queen is envious with her

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This room may be hired for weddings and other ____

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Using a globe can be ................. it is educational

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She was so ____ in her job that she didn't hear anybody knocking at the door