那時她正在做飯。

She was cooking dinner at that time.

Source: Tatoeba

Sentence Composition

1 那時 nàshí
  1. then
  2. at that time
  3. in those days
2 她 tā she
3 正在 zhèngzài to be in the process of (doing sth); to be currently ...-ing
4 做飯 zuòfàn
  1. to prepare a meal
  2. to cook