Practice Makes Perfect

85
Prepositions: In and On
Use in as a preposition to indicate:
the position or location 
the year of occurrence 
The towels are in the dryer. 
We married in 2003.
the months and seasons 
points of the day
My flower garden is beautiful
He left in the afternoon. 
in the summer. 
(exception: at night)
It’s my birthday in April. 
location within countries, cities, states, and provinces
She goes to school in Montreal. 
We had fun in Mexico.
He lives in Ohio. 
I met him in British Columbia.
Use on as a preposition to indicate:
an object supported by a
the directional position 
top surface 
of something
The cup is on the table. 
It’s the first door on the left.
a time of occurrence 
a method of transportation
I worked on the weekend. 
I felt sick on the plane. 
She was sick on Friday. 
(exception: in the car)
the means of expression 
the subject of study
We talked on the phone for two hours. 
I have a good book on horses.
They played the song on the radio.
I watched it on TV last week.
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EXERCISE
 Rewrite the following sentences correctly by choosing 
in
 or 
on
.
1. The garbage can is (in, on) the garage. 
2. Do you see signs of life (in, on) the moon? 
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 86
practice makes perfect Basic 
English
3. We will talk about it (in, on) the morning. 
4. Mark moved here (in, on) 1997. 
5. Don’t throw your empty bottle (in, on) the ground. 
6. We spent five days (in, on) Paris. 
7. All the kids start school (in, on) September. 
8. I will see you (in, on) Saturday. 
9. They advertised it (in, on) the radio (in, on) California. 
10. What do you have (in, on) your mouth? 
11. I saw your picture (in, on) the newspaper (in, on) Ontario. 
12. It’s my birthday (in, on) Tuesday. 
13. The bathroom is (in, on) the left. 
14. We went for a ride (in, on) his motorcycle (in, on) the country. 
15. She presented her project (in, on) trees. 
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