Помогите пожалуйста! англискийComplete the text with the correct forms,past continuous or

Помогите пожалуйста! англиский
Complete the text with the correct forms,past continuous or past simple,of these verbs.

Слова которые вставлять: arrive ; buy ; cancel ; look ; play ; rain ; see ; sell ; sing ; stand ; start ; stop

When I was walking through the park at 6 oclock yesterday evening,I 1_______ posters for an open-air rock concert. A man 2_____- tickets, so I stopped and 3_____ one.
Later at the concert,I 4________ for a place to sit when I saw two of my friends.They 5_______ at the front,so but we were still waiting for the band at 9 oclock! When they finally 6______ at 9.30 in7 _______
Everyone was wet and miserable.Then,when the band8 ________ their first song, a fan jumped onto the stage. The concert9 ______ for a few minutes,then the band started playing again. They 10________their second song when the lights went out.There was a problem with the electrics because of the rain! In the end they 11_________ the concert.What a disaster!