YOU / GET LOST / MOUNTAINS / TAKE / MAP A. UNLESS YOU SHOULD GET...

77. you / get lost / mountains / take / map

A. Unless you should get lost in those mountains, you had better to take a map.

B. In case you get lost in those mountains, you should take a map.

C. If you don‟t get lost in those mountains, you‟d better take a map.

D. In case you get lost of those mountains, you ought to take a map.