单项选择题
A. to avoid being eaten by arctic animals B. because fertilizer is not readily available C. to minimize exposure to the cold D. because unfrozen water supplies are very scarce
A. there are many applications looking for a job B. how an employer hires his employees C. employer hires a new employee within his company D. employer can advertise in newspapers and magazines
A. To give a speech instead of the businessman. B. To type a one-hour speech for the businessman. C. To choose a speech from a book of speeches and type it. D. To make up a speech from some others and type it.