2 . 用方框中单词的适当形式完成下列句子，每个单词只能用一次。

able, care, cheer, annual, challenge, benefit, kind

1. She told me to be ______ and look on the bright side.
2. Growing up in a big city, he found living in the village was ______.
3. The music festival is held ______ in Shanghai. I go there to enjoy music every year.
4. There are many ______ of doing sports. For example, it can reduce stress.
5. The accident was due to ______ driving.
6. Listening to music ______ us to feel relaxed.
7. You should not take advantage of his ______ by demanding too much.

3 . All entrances to the national park are ________ closed due to the dangerous flooding caused by the recent heavy rain.

A．annually

B．gradually

C．initially

D．temporarily