ESL Worksheets English Exercises - Free Printable

To solve the problem, we need to complete the sentences using the prepositions at, in, or on. Here's a detailed explanation and solution for each sentence:

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1. My brother’s birthday is in January.

- Explanation: Birthdays are typically associated with months, so we use in.
- Answer: in January

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2. My birthday is on March 15th.

- Explanation: Specific dates (e.g., March 15th) require the preposition on.
- Answer: on March 15th

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3. I was born in 2005.

- Explanation: Years are used with in.
- Answer: in 2005

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4. Our class starts at 8:00 AM.

- Explanation: Specific times (e.g., 8:00 AM) require the preposition at.
- Answer: at 8:00 AM

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5. What time do you usually get up?

- Explanation: This sentence doesn’t require a preposition because it’s asking about the specific time, not a context like a month, date, or year.
- Answer: (No preposition needed)

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6. Last night, I went to bed at 10:00 PM.

- Explanation: Specific times (e.g., 10:00 PM) require the preposition at.
- Answer: at 10:00 PM

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7. Steven often gets up late in the morning.

- Explanation: General times of the day (e.g., morning, afternoon, evening) use in.
- Answer: in the morning

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8. We eat lunch at noon.

- Explanation: Specific times (e.g., noon) require the preposition at.
- Answer: at noon

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9. Where I live, it snows in winter.

- Explanation: Seasons (e.g., winter) are used with in.
- Answer: in winter

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10. The meeting is at 3:00 PM.

- Explanation: Specific times (e.g., 3:00 PM) require the preposition at.
- Answer: at 3:00 PM

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11. Do you like to watch TV in the evening?

- Explanation: General times of the day (e.g., evening) use in.
- Answer: in the evening

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12. Do you have to go to school at 7:30 AM?

- Explanation: Specific times (e.g., 7:30 AM) require the preposition at.
- Answer: at 7:30 AM

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13. People landed on the moon on July 20, 1969.

- Explanation: Specific dates (e.g., July 20, 1969) require the preposition on.
- Answer: on July 20, 1969

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14. I always get up at 6:00 AM.

- Explanation: Specific times (e.g., 6:00 AM) require the preposition at.
- Answer: at 6:00 AM

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15. Do you like to go camping in the summer?

- Explanation: General times of the year (e.g., summer) use in.
- Answer: in the summer

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16. My father has a new job. He goes to work at 9:00 AM.

- Explanation: Specific times (e.g., 9:00 AM) require the preposition at.
- Answer: at 9:00 AM

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Final Answer:

1. in January
2. on March 15th
3. in 2005
4. at 8:00 AM
5. (No preposition needed)
6. at 10:00 PM
7. in the morning
8. at noon
9. in winter
10. at 3:00 PM
11. in the evening
12. at 7:30 AM
13. on July 20, 1969
14. at 6:00 AM
15. in the summer
16. at 9:00 AM

Boxed Final Answer:
\boxed{
\begin{aligned}
1. & \text{ in January} \\
2. & \text{ on March 15th} \\
3. & \text{ in 2005} \\
4. & \text{ at 8:00 AM} \\
5. & \text{ (No preposition needed)} \\
6. & \text{ at 10:00 PM} \\
7. & \text{ in the morning} \\
8. & \text{ at noon} \\
9. & \text{ in winter} \\
10. & \text{ at 3:00 PM} \\
11. & \text{ in the evening} \\
12. & \text{ at 7:30 AM} \\
13. & \text{ on July 20, 1969} \\
14. & \text{ at 6:00 AM} \\
15. & \text{ in the summer} \\
16. & \text{ at 9:00 AM} \\
\end{aligned}
}