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Only then ____ the letter from my son

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The system of checks and balances ensures that no individual has ________ to do as they please

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Children and parents should be concerned about _______ knowledge of growing vegetables and raising pets

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The best travel books of this year fall into three main categories: _________ informational, narrative, and anecdotal

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The next departmental meeting has been ...... to the 10th

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Faraday attended a lecture__________ y a famous scientist

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The crowd were carried ___________ by his passionate speech.

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The government has been offering subsidies to put ___________ the price of grain for farmers, millers, and bakers

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How long ____ Gerry?

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Close the door ______; it’s cold in here.

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Everyone wants to reduce pollution. But the pollution (30) _____ is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. (31) _____, exhaust from automobiles causes a large percentage of air pollution. But the automobile provides transportation for millions of people. Factories discharge much of the material that pollutes the air and water but factories give (32) _____ to a large number of people. Thus, to end or greatly reduce pollution immediately, people would have to (33) _____ using many things that benefit them. Most of the people do not want to do that, of course. But pollution can be gradually reduced in several ways. Scientists and engineers can work to find ways to lessen the amount of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws (34) _____ require businesses and traffic to stop, or to cut down on certain polluting activities

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You shouldn’t live ____ your means

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Twenty-first century technologies could offer lifestyles that are ____ benign

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What will we do if the taxi .............................?

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Our teacher told us that if we don’t ___________ the environment, our grandchildren may not even be able to carry on living

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We arrived at the hotel quite early, ____ in and had lunch

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____ your opinion of the professor is, you must admit that he has a good method of teaching

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Since he is often ignored by his colleagues, he ____ has the opportunity to demonstrate his ability

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_______ summer flash floods, all the crops in my small village were totally destroyed

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Seeing Leila in that white dress ..... memories of his Aunt Keira

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We often ........... to keep fit.