Вопрос по английскому языку:

Помогите составить вопросы к подлежащиму, сказуемому и т. п. предложениям:
1. My friends were describing a picture at 1 p.m. yesterday.
2. When we met her she was waiting for the bas.
3. Bob and Helen were decorating the Christmas tree the whole day yesterdày.
4. They were wearing national costumes.
5. The children were eating tasty food from differend countries.