根据句意，用所给单词的适当形式填空。
1. Tom is looking forward to _________ (see) the park.
2. Be careful when you go __________(cross) the street.
3. Which bus ________ I _______ (take) to the post office?
4. Tom fell off the bike and _________ (hurt) his legs.
5. He wants to know if the ________(follow) answer is right.