The time he has devoted in the past years ______ the disabled is now considered ______ of great value.
Their work ______, all the experts went out for relaxation.
The growing interest in ____ history is clearly evident in ____ number of people visiting museums and country houses.
If English ______ included in the examinations, few students would choose it.
The student will be suspended from school _____ he apologizes to his desk-mate before the class.
The small fishing village has ______ into a modern city in thirty years.