1.would you please pass me the passport____cover is brown?
2.Children shuold read such books_____will make them better and wiser.
3.The advertising company recently hired a sales manager_____had won a prize in an international contest.
4._____is known to everbody,the moon travels round the earth.
5.No one in china will forget that day_____the disastrous earthquake happened in 2008.
6.There is no evidence_____oil price will come down in the near future.