Choose the correct preposition to complete: 'He apologized ___ being late.'

Choose the correct preposition to complete: 'She is good ___ mathematics.'

Choose the correct preposition to complete: 'They arrived ___ the airport on time.'

Identify the sentence containing a dangling modifier.

Choose the correct preposition to complete: 'She is married ___ a doctor.'

Choose the correctly formed sentence using a gerund as the subject.

Choose the correct preposition to complete: 'He succeeded ___ passing the exam.'

Identify the sentence with the correct use of the subjunctive mood.

Choose the word that means 'a person who studies the stars and planets'.

Choose the correct sentence regarding parallel structure.

Choose the word that means 'a place where weapons are stored'.