Определите в предложениях видовременную форму глаголов. 
1. Henry Cavendish is the famous English chemist and physicist.    
2. Mendeleyev formulated his Periodic Law of Elements.
3. Tomorrow morning the geologists will begin their work.    
4. We are waiting for him in the laboratory.      
5. Yesterday the students were making experiments in the laboratory from 12 to 14 o’clock.
6. They will be studying English for two more years.