Question

When the phone..........(ring) I........(have) a bath​

Answer 1

When the phone rang i was having a bath.

Answer 2

Answer:

When the phone was ringing, I was having a bath.

Explanation:

Past tense implies that the action has been done long back and has been completed. It refers to any action done previously. Past tense has four forms – the simple past, the past continuous, the past perfect and the past perfect continuous form.  

In this sentence, the past continuous tense has been used. To denote the past continuous tense the -ing morpheme is usually used. The ‘past continuous tense’ shows that the action was committed in the past and is going on now as well.