Musa is a gifted but erratic player.

Analyze the question: You need the word opposite in meaning to "erratic" in the sentence "Musa is a gifted but erratic player."

Explain the concept: Erratic means inconsistent, not following a steady pattern, and unpredictable in behaviour or performance. Its antonyms include consistent, regular, steady and reliable.

Solution, checking each option:

• A. Unstable: This is close to erratic, so it is a synonym, not an opposite.
• B. Strong: This describes physical power. It has no direct link to consistency, so it is not the opposite.
• C. Regular: This means steady and following a pattern. It is the direct opposite of erratic.
• D. Unpredictable: This is a synonym of erratic, so it is wrong.

A player who is erratic performs inconsistently, while a regular player performs steadily and predictably.

Answer: C. Regular

Exam tip: In "opposite in meaning" questions, first find the synonyms among the options and eliminate them. Here, unstable and unpredictable both mean nearly the same as erratic, so they cannot be the answer. Whenever two options mean almost the same thing as the given word, you know both are wrong, and that makes the remaining choices easier to judge.