Answer:
Gabriel once camped with friends in his backyard. They stargazed and located planets and other constellations. Suddenly, they saw a shooting star cross the sky, which thrilled the boys!
Step-by-step explanation:
The verb in its incorrect tense is camps which should be camped.
The verb is incorrect because it is talking about Gabriel in the past tense so the verb should also be in past tense.
The form of verb used camps would be correctly used if the sentence is in the present continuous tense.
Example: Gabriel usually camps with friends in his backyard.