I don’t want to talk to you _________ you’re so annoyed and impatient.
---Mr. Smith must know a lot about Chinese history. ---________. He has studied it for years.
While watching television, ________.
In our factory there are 2,000 workers, two thirds of _______ are women.
Your decision will affect your future study in college and your future job _______.
Mr. Smith likes traveling _______; but his wife enjoys _______.