저는 집을 떠나지 않았어요고-

-TV만 봤어요

사람 몇 명을 저의이 집에 왔어요 (들렀어요)

들르다 (drop by)
Your version is correct as well.

그들은 캔디를 원했어요사탕을 원했는데-

If it is obvious, such as this case where you have just mentioned the people right before, it is usually better to omit pronouns in Korean. Especially if the pronoun is a direct translation of an English one like "they."

하지만 저-저한테는 아무것도 없었어요