_______is known to us all is that the 2016 Olympic Games will take place in Rio de Janeiro.
—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.
We do not know how astronauts can ____ when they spend months in space without the protection of the atmosphere.
Mrs. Hanson, a housewife bent on getting ____higher education, has been going to college, a few courses at ____ time, for 7 years.