He had decided to give it up , but on____ second thoughts he decided to try___third time.
Mr. Alexander doesn’t just write for fun; _______, writing is his bread and butter.
He sent me an e-mail, ________ to get further information.
---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.