Could, can, will be able to
choose the correct words.
i always play football with sam and bill on
tuesdays, so i couldn't won't be able to
go to the cinema with you next tuesday.
1 i could / can swim ten years ago. i
learned when i was five
2 people can / will be able to live on mars
one day.
3 she reads the bbc website because she
can / could speak english.
4 could / can you ride a bike five years
ago?
5 i can't / couldn't find the book that you
wanted so i stopped looking.
6 my mum couldn't / can't drive. she
hasn't got a driving licence.
7 it was too noisy in the room and i
couldn't / can't hear what the teacher
was saying
8 i'm afraid i won't be able to / couldn't
play tennis with you tomorrow. i'm
going to meet my cousin.