Exercise 2 Put the verbs in brackets into the past simple

Exercise 2 Put the verbs in brackets into the past simple or the past continuous.

Michael (1)_____ (have) breakfast yesterday morning when the post (2)____ (arrive). He (3)_____ (listen) to the radio at the time so he (4)____ (not/hear) the bell. His mother (5)____ (bring) him an official-looking letter a few minutes later. He (6)____ (open) it, wondering what it
(7)____ (can) be. Imagine his surprise when he (8)____ (read) it and (9)____ (find) out that his application to enter the young musicians talent competition had been accepted.