Some areas, （） their severe weather conditions, are sparsely populated.

单项选择题He might have been killed （） the arrival of the police.

单项选择题Although it s tough finding a job these days, Henry got a （） in a famous company.

单项选择题（） difficulties they may come across, they ll help one another to overcome them.

单项选择题The doctor said that mental （） is the major cause of his sleeping problem.

单项选择题（） comes back first is supposed to win the prize.