Надо перевести и поставить в правильную форму Past Continuous
1.Она покупала подарок для своей сестры, когда увидела школьную подругу возле кассы.
2.Вчера весь вечер шёл сильный снег
3.Он потерял важные документы, когда возвращался поздно домой вчера.
3.Что ты делал вчера в шесть часов? -Я ждал телефонный звонок от моего врача.

1.She bought a gift for her sister when she saw a school friend at the register.2.Last night it was snowing heavily.3.He lost important documents, when he returned home late yesterday.3.What were you doing yesterday at six o'clock? I was waiting for a phone call from my doctor.

1. It bought a gift for his sister, when she saw a school friend near the cash register.2.Vchera whole evening was heavy snow3.He lost important documents when returning home late yesterday.3. What did you do yesterday at six o'clock? -I Was waiting for a phone call from my doctor.