Fill in the blanks with the correct articles "a," "an," or "the" in this educational worksheet.

Let's solve this grammar exercise step by step. The task is to fill in the blanks with the correct articles: a, an, or the.

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Rules for Articles:

- "a" – used before consonant sounds (e.g., "a book", "a university").
- "an" – used before vowel sounds (e.g., "an apple", "an hour").
- "the" – used for specific or particular nouns (definite article).

Now, let’s go through each sentence:

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1. He eats _________ apple every day.
→ "apple" starts with a vowel sound (/æ/), so we use an.
✔ an

2. I have a bag. _________ bag is big.
→ The second mention refers to the same bag (specific). Use the.
✔ The

3. My father bought _________ shirt yesterday.
→ It's a general, non-specific shirt. Starts with consonant sound (/ʃ/), so use a.
✔ a

4. The man standing at _________ door is my uncle.
→ "door" here refers to a specific door (likely the front door). So use the.
✔ the

5. There is _________ bird on the wall.
→ A general bird (not a specific one). "bird" starts with consonant sound (/b/), so use a.
✔ a

6. That boy is playing with _________ umbrella.
→ General, non-specific umbrella. Starts with vowel sound (/ʌ/), so use an.
✔ an

7. My mother bought a watch. _________ watch is for my father.
→ Second mention of the same watch — specific. Use The.
✔ The

8. The duck has laid _________ egg.
→ A general egg (not a specific one). "egg" starts with vowel sound (/e/), so use an.
✔ an

9. I spend _________ hour to complete the questions.
→ "hour" starts with vowel sound (/aʊ/), so use an.
✔ an

10. _________ Earth revolves around _________ Sun.
→ Both are unique and specific celestial bodies. We always use the with planet names when referring to them as astronomical objects.
✔ The, the

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✔ Final Answers:

1. He eats an apple every day.
2. I have a bag. The bag is big.
3. My father bought a shirt yesterday.
4. The man standing at the door is my uncle.
5. There is a bird on the wall.
6. That boy is playing with an umbrella.
7. My mother bought a watch. The watch is for my father.
8. The duck has laid an egg.
9. I spend an hour to complete the questions.
10. The Earth revolves around the Sun.

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📝 Summary:

- Use a/an for general, non-specific things.
- Use the for specific or unique items.
- Remember that "an" is used before words starting with a vowel *sound*, not just letters (e.g., "hour" = /aʊ/, so "an hour").

Let me know if you'd like a printable version or explanation in another language!