Close! - - - 他昨天已经不发烧了，按照这种情况，大夫同意他出院。 As he hasn't have fever since yesterday, the doctor agreed to release him from hospital. I would change "As" to "Since", and "have" to "had" (past tense) Since he hasn't had a fever since yesterday, the doctor agreed to release him from the hospital. - - - 他是根据爸爸的办法修理自行车的 He repair the bicycle following his father's way. or He repair the bicycle using his father's method "repair" to "repaired" (past tense). He repaired the bicycle using his father's method. - - - Keep up the good work! :)

Thank you so much YGS!

He repair the bicycle by implementing his father's techniques.