Tom, clean up the broken glass _________ someone walks on it.
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.
--- How about putting some pictures into the report? --- _______. A picture is worth a thousand words.
I’d like to study law at university _____ my cousin prefers geography.