The easy way to ielts writing academic Module

3) Prepositions of location (In, at, on, no preposition)

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For example
In: 
class, school, (the) *car, (the) garden, (the) library, (the) office
(specific locations)
At:
school, the beach, home, (the) library, work, (the) office (general
locations)
On:
the train, the bus, the plane, the boat, the ship (means of
transportation except for “*cars”)
No preposition:
outside, inside, upstairs, downstairs, there, here
Articles
Articles are words that define a specific or non-specific noun. There are two
types of articles: 
definite 
and
indefinite
.
The definite article
The definite article is the word “
The
” that limits a noun (singular, plural, or
uncountable) to one specific thing, person, or situation. We generally use
“
the
” when it is clear which thing/person we mean.
For example
Did you get the job you had applied for? (a specific singular noun
which I already know about)
I watched a movie last night. The movie was about world war II. (a
countable singular noun, which is introduced in the first sentence)
We ordered some coffee. The coffee was great. (an uncountable noun
which is already mentioned in the first sentence)