Fill in the blanks with the correct article (a, an, or the) in this Grade 3 English worksheet.

Problem: Filling in the blanks with appropriate articles (`a`, `an`, or `the`)

#### Explanation of Articles:
- The: Used before specific or known nouns, singular or plural.
- A and An: Used before non-specific or general nouns.
- Use a before words that start with a consonant sound.
- Use an before words that start with a vowel sound.

#### Solution:

1. The Sun sets in the west.
- "Sun" is a specific noun (there is only one Sun), so we use the.

2. Anne is fond of listening to a song now.
- "Song" is a general noun here, and it starts with a consonant sound, so we use a.

3. Mr. Roger works at a computer software firm.
- "Computer software firm" is a general noun, and it starts with a consonant sound, so we use a.

4. Ethan and Kevin like to watch comedy shows on TV.
- "Comedy shows" is a general noun, and it starts with a consonant sound, so we use no article because it's plural and general.

5. Akbar was a great king.
- "Great king" is a general noun, and it starts with a consonant sound, so we use a.

6. Anne is the best student of mathematics in the class.
- "Best student" refers to a specific person (in this context, Anne), so we use the.

7. Gold is a precious metal.
- "Precious metal" is a general noun, and it starts with a consonant sound, so we use a.

8. I am a school student.
- "School student" is a general noun, and it starts with a consonant sound, so we use a.

9. I want a pear from that tree instead.
- "Pear" is a general noun, and it starts with a consonant sound, so we use a.

10. John met a boy in the supermarket and asked him a question.
- "Boy" is a general noun, and it starts with a consonant sound, so we use a.
- "Supermarket" is a specific location (known context), so we use the.

11. It’s Friday. Many people in our neighborhood have gone to the mosque.
- "Mosque" is a specific place (likely the local mosque), so we use the.

12. John borrowed a pen and an eraser from Anne.
- "Pen" is a general noun, and it starts with a consonant sound, so we use a.
- "Eraser" is a general noun, and it starts with a vowel sound, so we use an.

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Final Answer:

1. The Sun sets in the west.
2. Anne is fond of listening to a song now.
3. Mr. Roger works at a computer software firm.
4. Ethan and Kevin like to watch comedy shows on TV.
5. Akbar was a great king.
6. Anne is the best student of mathematics in the class.
7. Gold is a precious metal.
8. I am a school student.
9. I want a pear from that tree instead.
10. John met a boy in the supermarket and asked him a question.
11. It’s Friday. Many people in our neighborhood have gone to the mosque.
12. John borrowed a pen and an eraser from Anne.

Boxed Final Answer:
\[
\boxed{
1. \text{The}, \quad
2. \text{a}, \quad
3. \text{a}, \quad
4. \text{comedy shows}, \quad
5. \text{a}, \quad
6. \text{the}, \quad
7. \text{a}, \quad
8. \text{a}, \quad
9. \text{a}, \quad
10. \text{a, the}, \quad
11. \text{the}, \quad
12. \text{a, an}
}
\]