用所给词的正确形式填空。

1. The adventure (冒险者) gave a ________ (friend) smile to all those who came to greet him.

2. The soldiers were filled with ________ (angry) when they heard all the villagers had been killed

    by the enemy.

3. They have ________ (success) in sending every one of the satellites into space.

4. In time of ________ (dangerous) man's brains work much faster than normal.

5. It was ten years ago that I made ________ with him.We have had a long ________ (friend).

6. An old ________ showed us around the ________ (science) Museum yesterday.

7. The old woman is much ________ than before.Now she is living ________. Today our life is

    full of ________. (happy)

8. The teacher told us what the ________ change was in the ________ lesson.(chemical)

9. It was ________ of you to make such a mistake.You should be more ________ next time. (care)

10. The boy showed great ________ (brave) in fighting the enemy.