When we are in a new place, we must ____our manners and try to follow the customs of the place.
We went through a period _____ communications were very difficult in the rural areas.
My documents are always ______ out according to the contents (内容) and dates so that I have no trouble in finding them when they ______.
_______ English, the disabled boy could also speak fluent German and French.
We _____ the sunshine in Sanya now if it were not for the delay of our flight.
_____ creative looks like a good way to add years to your life.