We should do everything we can to protect the birds ______ danger.

Care of the soul is a gradual process ________ even the small details of life should be considered. (2012·湖南，34)

Someone called you just now.——I know. But I was busy at that moment. When I calledback, there was no.

Her ankle _____, our tour guide had to be taken to the hospital[ ]

Could you let me know ________ yesterday —Because the traffic was heavy .