The most important thing about cotton in history is _____ part that it played in ____ Industrial Revolution.
Jane has been so ________ in getting used to everything that she hasn’t had time for social activities.
To qualify yourself for this kind of new job, I recommend that you ________ some online courses.
— I hear it will rain tomorrow. — It _______ true. You see, there are so many black clouds in the sky now.
The Chinese are proud of the 29th Olympic Games _____ in Beijing in 2008.
As we grow up, it always _______ that after we give something up, we gain something new in its place.