41. (v18-1-22) Choose the answer which correctly completes the sentence.
Im so glad. This trip to the Urals is ... once -in -a - lifetime opportunity.
A)- B)an C)a D)the
Choose the answer which correctly completes the sentence. Im so glad.
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Ответ: |
Сборник: Английский язык
Параграф:
Articles with nouns in set expressions
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