NOVEMBER 21 18 - 20

This article contains many examples of adverbs of frequency, but also many useful time expressions.

http://ajarncharlie.blogspot.it/2010/04/esl-lesson-day-in-my-life-adverbs-of.html

Imagine that the text composed of answers to questions.
Here are the answers, try to write the questions.

Then answer the questions for yourself.

https://docs.google.com/document/d/166MtaS0LiE2WEyrGXbANIlPr6_0CYJHfGjK1I2RllbA/edit?usp=sharing

To talk about time we use the prepositions

at - for precise time

on - for a day or dates and

in  - for long periods like months and years .

Look here for more examples

https://www.englishclub.com/grammar/prepositions-at-in-on-time.htm

You can find practice exercises on Page 21 of International Express.

Here there is another exercise

http://www.englishpage.com/prepositions/time_prepositions_1.htm