根据首字母或汉语提示写单词。

1. Her expression____(导致)me to believe there was some problem.

2. The____(想法)of going out in the rain and fog discouraged him.

3. She is an English teacher and she has a good          (知识)of English.

4. The waitress s ____ me coffee after the meal.

5. Hunan tigers are one of             (濒临灭绝的)animals.

6. At first, they felt a bit t ___   , then they became more and more confident.