This document discusses the use of prepositions "on", "at", and "in" and provides examples of how they are used to indicate location, time, and place. It explains that "on" is used to indicate time or location on a surface, "at" specifies a precise location or time, and "in" denotes inclusion within a place, period of time, or container. The document offers many examples of how these prepositions are used with days, dates, addresses, times, places, and periods.

1. Prepositions (in, on at)
 By Mrs. Aparecida Oliveira

2. On
 There are magazines on the table.

3. On (time)
 Month
It’s on April 24th
 Days of the week
See you on Monday afternoon.
 Specific time
She was born on Christimas day

4. At (Specific Place)
 Anitta Poderosa is at home.

5. At (place)
 George lives at Eduardo Ribeiro Street.

6. At (time)
 Mary wakes up at 6 o’clock.

7. In
 There are cats in the mug.

8. In (place)
 Continent - We live in South America.
 Country – We are in England this vacation.
 State – In Amazonas we can visit Cigs.
 City – In Rio de Janeiro we can have wounderfull
time.
 Neighborhood – Pedro lives in Ponta Negra.
 Street- We can see many tress in this street.

9. In (time)
 Century – Michael was born in 20th century.
 Decade – In the 70’s people used to be very happy.
 Year – I moved to Manaus in 2004.
 Season of the year – In winter people wear sweater.
 Month – I normaly travel in December.
 Period- in the afternoon / in 10 minutes.