When talking to anyone that has an occupation like a teacher (so teachers, doctors etc.) You always use the formal conjugation of that word. So the answer is Usted
Can you give the list so I can give an accurate answer
Answer: Multiple cropping and use of modern farming methods are two different ways of increasing production on the same piece of land. e.g., (i) Multiple Cropping When more than one crop is grown on a piece of land during the year it is known as multiple cropping.
1. sabes
2. the launch, mission, and landing
3. to research the earth's Ozone
Is farmer eating the eggs. in mountains,is a girl's play i frisbee