Articles: a / an / the
1
Theory · read before you start
A / An
We use a/an the first time we mention one thing, or any one example of something.
RULE
a + consonant sound: a bus, a taxi, a ticket
an + vowel sound: an Underground train, an hour
Listen to the SOUND, not just the letter: 'an hour' (silent h) but 'a university' (sounds like 'y').
EXAMPLES
  • A black cab stopped near the station.
  • You can take an Underground train to the city centre.
2
Theory · read before you start
The
We use 'the' when it's clear which one we mean — because we already said it, or there's only one.
RULE
the + something specific or already known
no article + things in general: Buses in London are red.
Use 'the' for things there's only one of: the River Thames, the Underground. Don't use an article for general plurals.
EXAMPLES
  • The River Thames goes through London.
  • I took a bus, and the bus was very full.
3
Gap fill · type your answer in each gap
Complete each sentence with a, an, or the.
1.You can visit Tower of London.
2.Take bus to the city centre.
3.It takes about hour and a half.
4. River Thames is very famous.
5.Buy ticket before you get on the train.
4
Quiz · choose one option per question
Choose the correct answer. — means no article is needed.
1.London taxis are called 'black cabs'.
2.You can see Tower of London from the river.
3. buses in London are red.
4.Take Underground train — it's quick.