用所给词的适当形式填空。

1. _____ (luck), our team won the first prize.

2. We _____ (begin) to play hide-and-seek ten minutes ago.

3. Her sister _____ (choose) to give the seat to the seat to an old man on the bus finally.

4. All of us hope _____ (visit) the park soon.

5. His father didn't agree _____ (lend) him the bike.

6. We saw an _____ (amazed) film and all of us liked it.

7. Millie _____ (teach) me to drive two months ago.

8. Believe _____ (you). You are the cleverest student.

9. You'll feel the _____ (beautiful) of the old city if you come here in autumn.

10. Some people_____ (see) an eagle in the sky just now.

在新的历史条件下，我们党面临的“四大考验”，面临的“四大危险”分别是什么？