Complete the next text with the correct from the verbs, past simple or past continuous?

I was eating my lunch when the telephone rang.

I stood up quickly and ran towards the phone.

While I was running I fell over the dog and hurt my leg.

I was trying to stand up when I heard the doorbell.

I walked slowly to the door and opened it.

It was my friend Kate.

'Are you OK?

' She asked.

You didn´t answer the phone.