The important task will take Peter and me about four months to complete, so it will be a long time _____ we meet you again.
Once ______ , the plan can’t be changed.
They asked me so many ______ questions that I got ______.
Jumping out of ______ airplane at ten thousand feet is quit ____ exciting experience.
Occasions are quite rare ______ I have the time to spend a day with my kids.
The magazine ______ the cover is missing was borrowed from the school library.