SOS!!! объясните использование ГЛАГОЛОВ!!! выделенные крупным шрифтом(пропечатаны большими буквами)

Thanks very much for yorr e-mail. I always LOVE hearing from you. At the moment I AM STUDYING really hard. I′ M SITTING my exams next week.
My lessons START at 8-30. After schull, i go to my part-time job. I AM WORKING in a library for the next few months. Tonight I AM MEETING my friends.
Anyway, I′d better finish here. Write again soon.

Помогите пожалуйста,80 баллов.