Mary worked very hard and ________a good example to her colleagues．

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A black woman ________for refusing to stand up for a white man on a bus, which led to a demonstration．

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Mr． Smith ________for 4 years for political reasons when he was young in the USA．

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I want to ________voice to what we all feel in wishing Japan government a quick response．

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The elderly need special care in winter, as they are ________to the sudden changes of weather．

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You have lost two opportunities that can help you go to the U． S． This is your last chance, and I suggest you as well ________full advantage of it．

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These animals are all used to their habitats in this area; ________, they have learned how to live successfully in their living environment．

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I'm really sorry to inform you that there are no more extra tables ________for our Saturday’s party．

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When I entered the teacher's office, I found Mr． Johnson sitting in his chair with a cigarette in his right hand, completely ________scoring the examination papers．

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Plastics and other similar garbage that does not ________should not be thrown into the sea, though it may less contaminate the environment．

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