We looked over the precipice and quickly realized that it was a long way down to the road below us. which phrase you know that the word “precipice” means “a steep cliff”? select one: quickly realized we looked over a long way down below us

below us

Explanation:

quickly realized doesn't tell you that the precipice is deep, we looked over also doesn't tell you it is deep, a long way down doesn't tell you either because a long way down could be something straight or far up ahead.  Below us is the answer because below us means down and the precipice is deep down.

they would have to clean it very clean