XIII. Put the verbs in brackets into Past Simple or Past Continuous.

Решение:

1. My parents were not playing chess at 7 pm yesterday. (действие, которое длилось в определённое время в прошлом).
2. When she woke up, it was raining. (резкое действие 'wake up' в Past Simple, длительное действие 'rain' в Past Continuous).

Ответ: 1. were not playing, 2. woke up, was raining.