31. Crop-free period seldom exceeds one year and in some areas constant cropping is the regulation. 32. Her favorite free period activities are drama and nature. 33. Her favorite free period activity is obviously sports. 34. Our experience is, it does get into a double-digit increase in sales during the tax-free period . 35. The annual frost-free period lasts around 300 days. 36. In free periods he and his friends would play bridge, under the chestnut trees in summertime. 37. In 2005, the Government of Russia extended the registration-free period to 90 days for internal movements. 38. Beanies have become a prime topic of conversation among her friends during free periods at school. 39. Previously, he had talked about a violence-free period but had not spelled out the 10-day concept. 40. Prinsen did not enjoy his restaurant-free period and announced the return of the restaurant in April 2012.
