Viết lại câu: You should take a map with you because you might get lost in the mountains

1. You should take a map with you because you might get lost in the mountains
In case .........................
2. ''You shouldn't eat too much meat''
If i .................................
3. WWithout her help we would all have died
If it ..........................................
4.It's such a pity your sister can't come as well
If only.......................................