The school rule states that no child shall be, unless _by an adult, allowed out of the school during the day.
We won’t go to the park if it ______ tomorrow.
Jack is the most intelligent man____ I’ve ever met.
While______ in Scotland, he made friends with the native there.
--- Have you really been to visit the Bird’s Nest in Beijing? ---- I ______ it last summer vacation.
Ten minutes had been made full ____ of ____ the problem.