Modern plastics can _________ very high and very low temperatures.

She devoted herself ________to her research and it earned her a good reputation in her field.

The government _____ to the country to paymore attention to A/H1N1flu

Are you _____with doing a lot of homework everyday?— Sometimes I am. But as a student, we have to do so at present. [ ]

Try the new cleaner．Just a few minutes every day—that’s all it takes—______you could have shining floors and furniture