6) Сделайте следующие предложения вопросительными:
1. He can control the conditions in his laboratory. (Where?)
2. Within a business firm, a given product may be tested for quality during or after production. (When?)
3. During the war reports on the fulfilment of production plans for the physical output of major industrial articles were made every day and every ten days. (How often?)
4. The organization of current statistics in industry, agriculture, public education and other branches of the economy and culture was improved. (What?)
5. These are called “statistical methods”. (How?)