Контрольные задания > 2. Mom was greatly surprised _______ she saw dad's present for her.
Вопрос:
2. Mom was greatly surprised _______ she saw dad's present for her.
Ответ:
Mom was greatly surprised when she saw dad's present for her. - Мама была очень удивлена, когда увидела папин подарок для нее.
Объяснение: "when" используется для указания времени.