Choose the correct one.
Correct answer: A. The Ballet School has some pianists on salary; others are paid by the hour.
- A. The Ballet School has some pianists on salary; others are paid by the hour.
- B. The Ballet School has some pianists on salary; others are paid by per hour.
- C. The Ballet School has some pianists on the salary; others are paid by the hour.
- D. Ballet School has some pianists on salary; the others are paid by the hour.
Explanation
The sentence is describing the payment arrangements for pianists at the Ballet School, and the correct form is to use the preposition "by" followed by the phrase "the hour" to indicate hourly payment.
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