Помогите что поставить must или must`t1.When you go hiking through a forest you___________drop litter.2.When you leave he hiking camp you____________leave a fire.3.When the weather is very hot you ___________wear hats.4.When yo...

Помогите что поставить must или must`t 1.When you go hiking through a forest you___________drop litter. 2.When you leave he hiking camp you____________leave a fire. 3.When the weather is very hot you ___________wear hats. 4.When you go down a slippery road you ___________be careful. 5.When you go trough a tunnel you___________roller-skate.