______ the extreme levels of air pollution, city authorities have started to take measures to quickly reduce pollution levels and protect city dwellers.
The patient will have to remain in hospital for another week ____ the recent medical report.
Studying alone, you are free to choose what to learn and when, ________ you don’t need others’ agreement.
—Why did you drop the chance of earning big money? —________. You know, I don’t want to get rich by taking risks.
. Some experts are warning that the step the US government has taken to deal with the current crisis is ______ of much risk.
After the adjustment of financial policies, many netizens put up posts, 90 percent _______ carried the message of approval.