4. Complete the sentences with the correct form of the verbs given. 1. While I was listening (listen) to music, my friends arrived (arrive). 2. The bell was ringing (ring) while we talked (talk) about our holiday. 3. I wasn't looking (not look) at the exercise when the teacher asked (ask) me a question. 4. Ricky wasn't waiting (not wait) for me when I arrived (arrived) at the café.