Question 23: Find the appropriate verb form to fill in blank (iii)

Read the excerpt given below and answer the given subquestions with those forms of the verbs which best fit the passage from the options provided. Your chosen answer should maintain the tense consistency of the excerpt.
Daniel Boone was a boy who lived on the edge of the deep woods in Pennsylvania. One day he (i) _____ of his father's cattle. The pasture was several miles from the settlement. Although Daniel was a ten-year-old boy, he sometimes (ii) _____ lonely by himself. Today he lay on a hillside and sang aloud. There was a low laugh behind him. Daniel (iii) _____ to his feet. A tall, slim Indian boy stood a few feet away.
"I sing, too," the young Indian said. He (iv) _____ back his head and sang. Daniel could not understand a word.
"I sing to the sun and the wind and the rain," the boy explained."I like your Indian song," Daniel said, "but I (v) _____ glad you speak English."

Find the appropriate verb form to fill in blank (iii)