It is unlikely that enough qualified teachers will be found unless there is ______ improvement in salaries and conditions of housing.

单项选择题They aim to ______ the maximum economic benefit from the Olympic Games.

单项选择题It is hoped that the prisoner will be released through the ______ of the president himself.

单项选择题Recent changes in climate may ______ that global warming is starting to have an effect.

单项选择题A ______ racial incident in the summer of 2003 was cause for great public and administrative concern.

单项选择题Many hunting and gathering people of the late 10th century have recently adopted some form of organized agriculture to ______ their wild food resources.

单项选择题Paul is amazingly ______ in trying to get Mary to go out with him.

单项选择题A resolution to maintain the ceasefire was carried by an ______ majority.

单项选择题Intention movements are activities that tend to ______ some other activities, which is presumably why they often evolve into signals.

单项选择题The balances on their operating statements can not be called profits or losses, rather they are called surpluses or ______.

单项选择题Some companies are limiting the risk by conducting online ______ only with established business partners who are given access to the company's private intranet.