Click on the following link: https://www.bbc.co.uk/bitesize/articles/zdsthbk
Scroll down the webpage and work through the videos - complete 'Learn' section and 'Practise' section (just activity 1 and activity 2)
Look at worksheet. Write down the sentences correctly, placing the apostrophes in the correct places (only if an apostrophe is needed) - please note that these do not need to be printed. The answers can always be written separately on a piece of paper to avoid printing.
As soon as all of this is done (and the work is marked) message your teacher on J2e to let them know how you got on.