Question

where to use past simple and where to use past continuous​

Answer 1

Answer:

The simple past tense is commonly used with past time adverbs like yesterday, last week, last year etc. The past continuous tense is mainly used to talk about past events that were in progress at a particular point of time in the past. I was reading at 6 yesterday evening

Explanation:

Answer 2

Answer:

When we use these two tenses together, it shows us that the past simple action happened in the middle of the past continuous action, while it was in progress. While I was studying, I suddenly felt sleepy. We often use these tenses to show an action interrupting another action.