The rescue work three parts, of which saving the people’s lives is the most important one.
My morning ______ includes jogging in the park and reading newspapers over breakfast.
Since Tom ______ downloaded a virus into his computer, he can not open the file now.
At minus 130℃, a living cell can be ______ for a thousand years.
The traditional view is ______ we sleep because our brain is “programmed” to make us do so.
______ he referred to in his article was unknown to the general reader.