Oseli's … teacher teaches English, Physics, Economics and Technical Drawing.

Analyze the question: The sentence says the teacher teaches English, Physics, Economics and Technical Drawing. These are very different subjects, so we need an adjective that describes someone who can handle many different areas or skills.

Explain the concept: This is a vocabulary-in-context question. The clue is in the details. The list of unrelated subjects tells us what quality the teacher has.

Check each option:

• A. efficient means working in a well-organised way without wasting time or effort. It says nothing about the range of subjects taught.
• B. jovial means cheerful and friendly. Being cheerful has no link to teaching many subjects.
• C. kind means caring and considerate. This also has no connection to the subjects.
• D. versatile means able to adapt or be skilled in many different areas. This fits a teacher who handles English (arts), Physics (science), Economics (social science) and Technical Drawing (technical skill).

Answer: The correct option is D. versatile.

The sentence becomes: Oseli's versatile teacher teaches English, Physics, Economics and Technical Drawing.

Exam tip: In "best completes the sentence" questions, look for the context clue. Here the list of varied subjects points to versatile. Remember: versatile = many-sided, able to do many things.