根据句意，用括号内所给词的适当形式填空。

1. —Thank you for (invite) ______ me to your party next Sunday, Peter. —I'm glad to do that.

2. You can't take anything from here without (permit) ______.

3. It's said that you've completed the building of the new lab (succeed) ______ in time.

4. In 1972,it was discovered that the manatees were in (dangerous) ______.

5. It is very important to make a correct (decide) ______.