4 questions

Prepositions & Articles

He achieved rapid promotion, but ___ the expense of his health.

  • a.at
  • b.on
  • c.in
  • d.to

The fixed phrase is 'at the expense of', meaning something is sacrificed for something else. No other preposition is used in this idiom.

Prepositions & Articles

New regulations were introduced ___ the wake of the scandal.

  • a.on
  • b.at
  • c.in
  • d.by

'In the wake of' means following or as a result of an event. The preposition is fixed as 'in'.

Prepositions & Articles

The company was ___ the verge of bankruptcy before the rescue deal.

  • a.at
  • b.in
  • c.near
  • d.on

'On the verge of' means very close to (usually something negative). The idiom fixes the preposition as 'on'.

Prepositions & Articles

Her early novels show ___ remarkable understanding of human nature.

  • a.the
  • b.a
  • c.an
  • d.some

When an abstract noun like 'understanding' is modified and countable in this sense, it takes the indefinite article: 'a remarkable understanding'. The adjective begins with a consonant sound, so 'a', not 'an'.

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