Переведите на русский язык следующие предложения. Определите в них видовременную форму глагола-сказуемого:

1.The shop-assistant is serving customers now. 2. They were having their breakfast at 8 o’clock. 3. Don’t phone me. I’ll be working. 4. It was raining the whole day. 5. While the students were doing a test the teacher was checking the students’ essays.