Would you know what to do if ____ lost in the mountains? The number one survival tip is to stop walking and wait to be rescued. In research done in Canada, however, only two out of 800 lost people actually did this. If the other ____ walking, rescue services would have found them much more quickly. If they had waited in an open space, a helicopter ____ them immediately. The most important thing when you go hiking is to tell someone where you are going, so that you can be rescued if anything goes wrong.

5A-2c Unreal conditionals - Mountains

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