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a person or group of people whose job is to protect a person, place, or thing from danger or attack, or to prevent a person such as a criminal from escaping

What does GDS stand for?

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Our latest model of phone has several new ______.

Choose the correct word for the following definition: to watch and check a situation carefully for a period of time in order to discover something about it

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an energetic person who enjoys being with other people

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when something happens at a particular time of year

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to study a subject in detail, especially in order to discover new information or reach a new understanding