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Children learn primarily by ................... the world around them.

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The reason for all the changes being made to us ____ yet

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............. is no way to tell the exact number of heroin addicts in the United States. 

What______ do you like best? I like the cold weather.

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I tried to patch _________ my dispute with Marcy, but she isn't ready to forgive me

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 It is unreasonable to judge those who dye their hair as naughty and unreliable.

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When I first saw Miriam, I ____ her to come in for tea and we talked for nearly two hours

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The neighborhood is going to start ______________ people to shame who don't pick up after their pets

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He's played on the team for years, but he's _____________ his bow as team captain tomorrow night

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Around 200 million people are employed in tourism worldwide, making it the largest industry in the modern global economy. It is estimated that three-quarters of a billion people go on holiday each year, and industry planners expect this figure to double (43) _____ 2020. Some of the biggest beneficiaries are less developed countries, where it is often their main source of income. (44) _____, along with the economic benefits, this mass movement of people has resulted in environment. People often forget the damage caused by carbon emissions from aircraft, (45) _____ contribute directly to global warming. Deforestation has cleared land in order to build hotels, airports and roads, and this has destroyed wildlife. In some areas, water shortages are now common because of the need to fill swimming pools and water golf courses for tourists. By pushing up prices for goods and services, tourism can also be harmful to people living in tourist destinations. In response to these (46) _____, some travel operators now offer environment-friendly holidays. Many of these aim to reduce the negative effects of tourism by (47) _____ only hotels that have invested equipment to recycle waste and use energy and water efficiently. Increasingly, tourists are also being reminded to show respect for customs of the people whose countries they are going to visit, and to support local businesses, such as restaurants and shops which depend on tourism for their main income

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He seemed to ______________ great delight in embarrassing me.

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Queens Hotel ------- substantial discounts to corporations that often lodge their employees there

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Many working women rely on relatives to help take care of their children.

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Thanks to everyone's efforts, we can do ____ to make school a meaningful place for students living in poverty

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Tom is keen _______ listening to rap music

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It is important that he _____ a gallon of water with him if he wants to hike to the bottom of the Grand Canyon

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The results of the research ____________that, presently, several East Asian countries _________ rapidly

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If you are given a ________ anaesthetic during an operation, you are still aware of what is going on around you

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A slower-than-expected financial quarter has put some investors ______________ guard.

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Doing the same thing every day can get you ..........

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My neighbor really gets on my nerves. She ______ the washing machine on late at night