1- The maple leaf who is on the Canadian flag is the symbol of Canada.
2- My cousins, who want to work in Montreal, have asked for a work permit.
3- In this restaurant, the maple syrup, which is serving with pancakes, is delicious.
4- This guide-book i bought yesterday will be useful for my trip.
5- The wood cabin, we rented for a week, was not very comfortable.
6- This writer is only 24 years old and her last novel has become a best-seller.
Voilà, j'espère que c'est juste. Je précise que je ne suis pas sûre pour la 6e :)