Choose the most suitable option to replace the highlighted part of the sentence: She is good in dancing.

Correct — C. Skill at an activity takes the fixed pair good at: good at chess, good at dancing. The preposition 'in' is the error.

The best replacement fixes the preposition and keeps the sentence's own gerund, dancing, which was never wrong: 'She is good at dancing' → option (c).

Why the others are wrong

• (a)
  at dance — At dance fixes the preposition but also swaps the gerund dancing for the noun dance. The error was only 'in', so the replacement should change only that.
• (b)
  with dancing — Good with is for handling people or things — good with children, good with money — not for skill at an activity such as dancing.
• (d)
  on dancing — On does not pair with good in this sense. 'On dancing' belongs after words like keen: keen on dancing.

Many adjectives take a fixed preposition that has to be learned as a pair: good at, fond of, keen on, afraid of.

For ability, the pair is good at, followed by a noun or an -ing form: good at chess, good at dancing. Other prepositions change the meaning — good with (handling people or things), good for (beneficial to).

Key facts

• Ability at an activity: good at + noun or -ing form, as in good at chess and good at dancing.
• Good with is used for handling people or things: good with children.
• Good for means beneficial to: exercise is good for health.
• Keen takes on: keen on dancing.

Common traps

• Picking 'at dance' because it contains at — it also changes dancing, which was never the error.
• Accepting 'good in' because it sounds familiar — the keys here and at 16 Sep 2025, 16:00, English Q.20 correct it to good at.

No directly related past PYQ was found.