The Secret Rule: In, At, On for Time Expressions

The Secret Rule:  In, At, On for Time Expressions

When you learned 'in', 'at', and 'on' for time expressions, I bet your English teacher told you that you just have to memorize which time expressions took which preposition. Actually, that's not true!  And there are so many time expressions that it's impossible to memorize which take in, which take at, and which take on. This video introduces the three easy rules that no one teaches you; but if you follow these rules, you will correctly use in, at, and on for time expressions 99% of the time.  


Take the quiz to see if you've mastered this topic!  After submitting your quiz, our academic team will email your results and personal feedback.

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Choose in, at, or on:
Choose in, at, or on:
Choose in, at, or on:
Choose in, at, or on:
Choose in, at, or on:
In the present time, the economic conditions are uncertain.
Is 'in' used correctly in this sentence?
Banks are closed on all public holidays.
Is 'o'n used correctly in this sentence?
Bears sleep on the winter time and come out of their sleep in the spring and summer to eat.
Are 'on' and 'in' used correctly in this sentence?