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B1 GRAMMAR · ARTICLES · A2
A / an vs the
Use a / an when a noun is new or general, and the when both speaker and listener know exactly which one. Small words, big difference.
See the difference
A
a / an
one of many; first mention
I saw a dog in the park.
我在公园看到一只狗。
B
the
a specific one both people know
The dog was very friendly.
那只狗非常友好。
Practise it
Q1 She is ____ engineer.
Q2 Can you close ____ door, please?
Q3 I love ____ music.