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we intend to ………..with the old system as soon as we have developed a better one.

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If we _____ wasting water, there will be a shortage of freshwater in a few decades

The clock is _______ the teacher's desk.

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

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The electric light bulb ____ by Edison

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The seamen .........  in sympathy with the dockers

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I got everyone in the family ______ Jane’s birthday card before I sent it to her

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His doctor suggested that he______a short trip abroad

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The music aroused an……..feeling of homesickness in me

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_______ it further with her husband, she decided to accept the job offer.

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The little boy pleaded _____ not to leave him alone in the dark

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Of all high school courses, mathematics _____ to be difficult

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It is good form to use the name of the person ..............

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My grandparents are ........... in years, so they bought a condominium in Arizona

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It took me months to save ___________ enough money to go travelling

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Her singing career had just begun to take ______________

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She had an unclear ________ of him in her mind, although she knew he would be old

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The card for everyone to sign ...........

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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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 ________ TV channels are there in Viet Nam? 

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It used to be assumed that jellyfish were among the simplest life forms, as it had no brain or central nervous system.