____ , the boys were shouting and singing.
The number of private cars in urban areas should be limited ___________the number of public buses should be increased.
the teacher us, we can make great progress.
The young man tried to live by writing, but it didn’t provide a good enough ___________.
China is a _____ country _____ to the third world.
It is _______ pleasant surprise to learn that Mary is ______ great success as a writer.