She is ... for the sun to come up.

{"correct_answer"=>"waiting", "explanation"=>"The sentence 'She is ... for the sun to come up' requires a verb that indicates an action taking place over time, not a singular action. 'Going' implies movement, while 'waiting' means staying in place until something happens, which fits the context of waiting for the sun to rise. Therefore, the correct answer is 'waiting'. The full sentence would be: 'She is waiting for the sun to come up.'"}