完成句子。
________________ (众所周知), the moon travels around the earth once every month.
Jack has won the first prize, ________________ (像往常一样).
York, ________________ (我参观的) last year, is a nice old city.
Lucy and I made an appointment of an interview on Sunday afternoon, _______________　 （到那时） I would be free.
She gave another piece of advice, ________________ (我认为) is of great help to the research work.