:rewrite the sentences using: can, cant, could, have to, dont have to, must, mustnt 1) its forbidden to fish in this area. 2) its possible to see poisonous snakes in the swamp. 3)its not necessary to sleep in a tent at night. 4) you arent allowed to feed the animals. 5)its necessary to wear protective boots. 6) is it ok if i borrow your insect repellent. 7) its the rule to stay on the path.