Answer:
I think it will help you
Step-by-step explanation:
Thank you:)
here ya go!
numbers 1, 4, 7, 8, 9, 12, 13, 14, 15, 16, 17 and 19 are 'A'
numbers 2, 3, 5, 6, 10, 11, 18, and 20 are 'an'
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