根据英文解释、汉语提示及句意，写出句中所缺单词。

1. May is my _________(忠实的) friend and I can share my problems with her.

2. My mum can cook _________ (tasty) meals. And the chicken tastes nice.

3. How many ___________ (语言) can you speak?

4. You must drive carefully because there is too much ________ (movement of cars) on the city road.

5. I don't want to watch TV this evening. I'll listen to music i_________.