"N's N" ou "N of N"

Gap-fill exercise

Make a link between the two nouns using N2's N1 or N1 of N2.
Remplissez les blancs en choisissant entre 's ou of
the top / the page : Read the line at .
the daughter / Peter : Do you know ?
the cause / the problem : I ignore .
the room / our teachers : You can find her in .