Final answer:
For the sentence about hiding from a bully, 'Squatted' is the proper word as it means lowering the body to hide. 'Stood' would not fit as it involves being upright, 'Rippled' is not an action one can take to hide, and 'Skipped' suggests movement rather than staying hidden.
Step-by-step explanation:
The word which best completes the sentence 'I was trying to hide from the bully, so I _____ behind the bush' is b) Squatted.
The action of squatting indicates lowering the body to a small size to hide or stay out of sight, which makes sense in the context of trying to avoid being seen by a bully. 'Stood' would not be appropriate as it implies an upright position and visibility. 'Rippled' does not fit the context of the action being described, and 'Skipped' would imply moving in a light, hop-like manner which is not coherent with hiding.