A, An and The: Exercises with Answers

Choose a or an for one nonspecific singular countable item, the when the listener can identify the intended reference, and no article for many general plural or uncountable meanings. The questions below give context so the answer does not depend on guessing.

A short rule check

Choose a or an from the sound immediately following it, not simply the first written letter. A university begins with a consonant sound; an hour begins with a vowel sound. If an adjective comes before the noun, listen to that adjective: an unusual idea, a useful idea.

We saw a bicycle outside. The bicycle had a red basket.

💡 First the bicycle is introduced; then the listener knows which one.

An honest answer is useful.

💡 Honest begins with a vowel sound because the h is silent.

I enjoy music.

💡 Music has a general uncountable meaning here.

The can refer to something known from the situation, even on its first mention. “Close the door” may be natural because both people can see the relevant door. Conversely, a first mention does not automatically require a or an if the reference is already clear.

How to use this practice

Write a, an, the or — for no article. Read the context before filling the gap. An article changes meaning; a sentence using a different article can be grammatical in a different situation. These questions specify the intended situation.

For general plural nouns, no article is often appropriate: “Bicycles are useful.” For a particular identified group, use the: “The bicycles outside our office are wet.” General uncountable nouns behave similarly: “Water is essential” versus “The water in this bottle is cold.”

Common mistakes to watch

❌ She gave me an useful tip.

✅ She gave me a useful tip.

Useful begins with the consonant sound /j/.

❌ He gave me an advice.

✅ He gave me some advice.

Advice is normally uncountable. A piece of advice is another option.

Practice: 12 questions

Try all twelve before reading the answers. Use the context in each sentence, not just a single signal word.

1. Write a/an/the/—: “Mira is ___ architect.” This gives her profession, without identifying one particular architect.

2. Write a/an/the/—: “We waited for ___ hour.” The h in hour is silent.

3. Write a/an/the/—: “He studies at ___ university in my town.” This is one unspecified university.

4. Write a/an/the/—: “I found a coin. ___ coin was under my chair.” Refer to that same coin.

5. Write a/an/the/—: “Please pass me ___ blue folder beside your laptop.” There is exactly one such folder and both speakers can identify it.

6. Write a/an/the/—: “___ cats need food and water.” This is about cats in general.

7. Write a/an/the/—: “___ water in this sealed bottle is for the trip.” Refer to that particular water.

8. Write a/an/the/—: “She gave me ___ honest answer.” This introduces one answer.

9. Write a/an/the/—: “I need ___ useful tool for this repair.” This introduces one unspecified tool.

10. Write a/an/the/—: “We usually eat ___ breakfast at seven.” Refer to the ordinary daily meal, without modifiers.

11. Write a/an/the/—: “___ sun is bright this morning.” Refer to the sun in our sky.

12. Write a/an/the/—: “I enjoy listening to ___ music.” Refer to music in general.

Answers and explanations

1. an

💡 Architect is a singular countable profession beginning with a vowel sound.

2. an

💡 Hour begins with a vowel sound.

3. a

💡 University begins with a consonant /j/ sound and the reference is unspecified.

4. The

💡 The coin has already been identified.

5. the

💡 The description identifies one shared, specific folder.

6. —

💡 A general plural statement about cats uses no article here.

7. The

💡 The following phrase identifies specific water.

8. an

💡 Honest begins with a vowel sound.

9. a

💡 Useful begins with a consonant /j/ sound.

10. —

💡 The ordinary meal name takes no article in this pattern.

11. The

💡 The context identifies the sun shared in our environment.

12. —

💡 Music is general and uncountable in this sentence.

Is the always wrong on a first mention?

No. The listener may identify the reference from the situation or a description. First mention is only a useful starting pattern.

Can the appear before an uncountable noun?

Yes. Use it for an identified quantity or instance, such as the water in this bottle.

Keep learning

Read the full articles rules guide, review countability and practise some and any.

Grammar reference: Cambridge on articles. The lesson explanations and practice questions are original.

Practice in the 30 Days English Challenge: Day 11: A, An and The: Choose the Right English Article