Present Perfect vs Present Perfect Continuous

1 Why are you angry? I/wait/for you/since 6 o'clock

2 Why are you upset? I/just fail/my driving test

3 Why do you look pleased with yourself? I/write/six important emails today

4 Why do you look happy? I/just book/a holiday

5 Why do you look pale? I/have/a stomach ache all afternoon

6 Why do you look worried? I/just hear/some bad news

7 Why do you look exhausted? I/work/since 7 o'clock this morning

8 Why do you look relaxed? I/listen/classical music/for all day