Do you know that the first textbooks written for teaching English as a foreign language ____ in the 16th century?
___ anybody call when I am away, please write down his name and address.
–What took you so long? –I got lost. I have no sense of direction.
Please arrange ___ first, and then let him have a good rest.
Students should always remember theory and should not at all be ___ from practice.
Ten years later, the prisoner of war ___ free and regained his ___.