Nowadays people have to pass various tests for professional __________ so that they can be qualified for a well-paid job.
I was greatly ______ at how he worked out the ______ problem in a creative way.
My painting won the first prize, _____ changed my plans for the future.
—It’s a little bit cold today, but you have sweat all over. —Yes, I _______ around the city for almost three hours.
The rate of unemployment in America after the worldwide economic crisis may be ______ reported earlier.
Cycling is a very useful way, especially in cities _______ bike paths have been built.