Fill in the blanks with appropriate prepositions: Mother Teresa was born ………27th August, 1910……..Yugoslavia………….. the age of twelve she wanted to become a nun. When she was nineteen, she arrived ……India. Some months later, she went……….. Patna to do a course in nursing.

Sure, let's fill in the blanks with appropriate prepositions:

• Mother Teresa was born on 27th August, 1910 in Yugoslavia.
• At the age of twelve, she wanted to become a nun.
• When she was nineteen, she arrived in India.
• Some months later, she went to Patna to do a course in nursing.

Here's the completed text with the correct prepositions:
"Mother Teresa was born on 27th August, 1910 in Yugoslavia. At the age of twelve, she wanted to become a nun. When she was nineteen, she arrived in India. Some months later, she went to Patna to do a course in nursing."

Explanation of prepositions used:

• "On" is used before specific dates (e.g., 27th August, 1910).
• "In" is used before countries (e.g., Yugoslavia) to indicate place of birth.
• "At" is used before expressions of time (e.g., the age of twelve) to indicate a specific point in time.
• "In" is used before countries (e.g., India) to indicate arrival or location.
• "To" is used before a destination (e.g., Patna) to indicate movement towards a place.

These prepositions are used appropriately based on standard English usage and grammar rules.