Выберите правильную временную форму глагола :
1. Where are you ? I (have waited/ have been waiting) for you for an hour already!
2. My uncle (has bought/ has been buying) this bike.
3. She (has been writing/ has written) the letter since she came home.
4. I (have been painting/ have painted) the walls all the morning!
5. You (have been reading/ have read) this book for 6 months already! There are only 50 pages in it!