Question

Fill in the blanks with an appropriate tense form
....... I didn't hear the door bell.
1. I ...........
a) a] slept​

Answer 1

Answer:

I was sleeping. I didn't hear the door bell.

We use the past continuous to talk about an action or situation that was going on at a particular point of time in the past.

Explanation:

Answer 2

Answer:

The correct tense form is,

Was sleeping

Hope it's helpful