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Basics. Prepositions of Time: At, On, and In: correct answers

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Prepositions of Time: At, On, and In

English prepositions of time can be tricky, but they follow predictable patterns. We use at for exact clock times and specific points (e.g., at 8:00 AM, at midnight), on for specific days and dates (e.g., on Saturday, on May 4th), and in for longer periods like months, years, and seasons (e.g., in 1932, in the winter).

In this challenge, you will help time travelers, alien invaders, and even Count Dracula navigate their schedules using the correct time words. You will practice matching at, on, and in to exact times, days of the week, specific holidays like New Year's Eve, and parts of the day like the morning or night.

You'll work through 12 questions featuring a fun mix of single-choice, multi-choice, drop-down, and drag-and-drop formats to solidify your understanding of these essential grammar rules.

Try the quiz to check your knowledge!

EasyA1 | Elementary | BeginnersA1Past tensePhrasePrepositionSentenceCollocations

Correct answers

Question 1

Help the dramatic history professor finish a fascinating fact about the past.

"The Great Emu War of Australia took place ___ 1932, and believe it or not, the birds actually won!"

The correct answer is in.

We use the preposition in for longer periods of time, such as months, years, decades, and centuries (like in 1932, in October, or in the 20th century).

Question 2

Complete the alien commander's invasion schedule so they don't accidentally arrive while everyone on Earth is sleeping.

We will launch the spaceships in July, when the weather is warm. The main attack begins exactly at midnight, catching them by surprise. Victory will be ours on Independence Day!

We will launch the spaceships in July, when the weather is warm.

We use "in" for months of the year.

The main attack begins exactly at midnight, catching them by surprise.

We use "at" for specific points in time, including noon and midnight.

Victory will be ours on Independence Day!

We use "on" for specific dates and named single-day holidays.

Question 3

The detective is checking the suspects' statements. Select ALL the sentences that use time prepositions correctly.

The correct answers are I was sleeping at midnight. and The robbery happened at 9:30 PM.

We use the preposition at for specific clock times (9:30 PM) and specific points like at midnight.

"I was at work in Monday" is incorrect because days of the week require on (on Monday).

"I woke up at the morning" is incorrect because parts of the day require in (in the morning).

Question 4

Help the friends finalize the details for their surprise party. Select the correct preposition for each blank.
The party is _________________________ Friday.
We need to be there _________________________ 6:00 PM to hide before she arrives.
Her actual birthday is _________________________ November, but we are celebrating early!

The party is on Friday.
We need to be there at 6:00 PM to hide before she arrives.
Her actual birthday is in November, but we are celebrating early!

Grammar Rules:

  • Use on for days of the week (e.g., on Friday).
  • Use at for specific clock times (e.g., at 6:00 PM).
  • Use in for months and years (e.g., in November).

Question 5

Help the confused time-traveler set the dials for their next adventure by dragging the correct prepositions into the logbook.

My time machine is finally fixed! I need to arrive exactly at 3:00 PM to avoid the paradox. The dinosaur stampede happens on Monday, so I should be safe then. I just hope I can make it back home safely in 2025!

I need to arrive exactly at 3:00 PM to avoid the paradox.

We use "at" for specific clock times.

The dinosaur stampede happens on Monday, so I should be safe then.

We use "on" for days of the week.

I just hope I can make it back home safely in 2025!

We use "in" for years, months, and seasons.

Question 6

Help the eager student organize a study session. Select ALL the time phrases that correctly complete the message.
"Let's schedule our next grammar club meeting on ______."

The correct answers are Friday and May 4th.

We use the preposition on for specific days of the week (Friday) and dates (May 4th).

We use in for parts of the day (in the morning) and at for specific clock times (at 3:00 PM).

Question 7

Help the panicked student confirm the exact time of their final exam by choosing the correct word.

"Don't tell me the chemistry exam starts ___ 8:00 AM! I thought it was in the afternoon!"

The correct answer is at.

We use the preposition at when talking about specific, precise times on the clock (like at 8:00 AM, at noon, or at midnight).

Question 8

Complete the diary entry of a very confused vampire trying to adjust to modern life. Select the best word for each gap.
I usually sleep _________________________ night, which is terrible for a vampire's reputation.
I wake up feeling completely exhausted _________________________ the morning.
Thankfully, my doctor's appointment is _________________________ October 31st to fix my sleep schedule.

I usually sleep at night, which is terrible for a vampire's reputation.
I wake up feeling completely exhausted in the morning.
Thankfully, my doctor's appointment is on October 31st to fix my sleep schedule.

Grammar Rules:

  • Use at with "night" (at night).
  • Use in for parts of the day (in the morning, in the afternoon).
  • Use on for specific dates (on October 31st).

Question 9

Complete the text message inviting a friend to a weekend pizza party.

"We are hosting a massive homemade pizza party ___ Saturday, and you absolutely have to come!"

The correct answer is on.

We use the preposition on for specific days of the week and dates (like on Saturday, on Monday morning, or on New Year's Eve).

Question 10

Help the time traveler complete his mission log. Select the correct option for each blank.
I arrived _________________________ 1999, right before the new millennium.
Unfortunately, my time machine broke down _________________________ New Year's Eve.
I finally managed to fix the engine _________________________ midnight.

I arrived in 1999, right before the new millennium.
Unfortunately, my time machine broke down on New Year's Eve.
I finally managed to fix the engine at midnight.

Grammar Rules:

  • Use in for years (e.g., in 1999).
  • Use on for specific days or holidays with the word "Day" or "Eve" (e.g., on New Year's Eve).
  • Use at for specific times of day, including specific terms like noon and midnight (e.g., at midnight).

Question 11

Help Dracula plan his upcoming vacation. Select ALL the options that correctly complete his diary entry.
"I prefer to travel in ______ because the sun is less annoying."

The correct answers are the winter and November.

We use the preposition in for months (November), seasons (the winter), and years.

We use at for specific times like at midnight, and on for days of the week like on Tuesday.

Question 12

Help Count Dracula book his tropical vacation by filling in his rather unusual travel requests.

I prefer to take my long beach walks at night to avoid sunburns. Please ensure my coffin is cleaned and ready in the morning when I return to sleep. I will depart for my trip on October 31st.

I prefer to take my long beach walks at night to avoid sunburns.

We say "at night" as a fixed exception to the rule for parts of the day.

Please ensure my coffin is cleaned and ready in the morning when I return to sleep.

We use "in" for specific parts of the day (in the morning, in the afternoon, in the evening).

I will depart for my trip on October 31st.

We use "on" for specific calendar dates.

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