根据句意，在相应的横线上，写出括号内所给单词的适当形式。
1.Please write down those _________ (climb) names and take their bags away.
2.Jack runs faster than I, but I jump _________ (far) than he.
3._________ (luck), with the help of the police, the careless mother found her lost baby.
4.He is not very _________ (hope) about the interview.
5.He is going to celebrate his (forty) birthday this Saturday.
1. climbers’2. farther 3. luckily 4. hopeful 5.fortieth