Упрашиваю помогите как можно прытче с управлением 2 и 4.заранее спасибо

c упражнением?

Да, помогите пожалуйста со 2 и 3, а не 4 упрашиваю

Was walking, began
were you reading
was digging, hurt
was waiting
was she driving, happened

4.
they were having a conference yesterday at 5 pm.
We were laying a table when the guests arrived
I was asleep when I heard somebody knocking the door.
He was walking along the road when he slipped on the banana peel. Mother was cooking while I was doing my home work. He was reading a contract when his boss called.

2. Were cleaning
4. Went skiing
Were skating
Had