Strong and weak forms: /ɒv/ and /əv/
1 Read and listen to the dialogue.
JULIA What do you always buy the same brand of?
JACK I always buy the same brand of trainers. They’re called Ace. I bought a pair of green ones last week.
JULIA Ace? What are they made of?
JACK They’re made of fabric and rubber. They put a lot of effort into the design and quality of them.
JULIA And into the marketing of them, too!
2 Listen again. Underline in blue each of which is stressed. Underline in pink each of which is unstressed.
3 Listen, repeat and practise.