put the verbs in brackets into the gaps in the correct tense past perfect or simple past
1)before he______(to sing) a song he ____(to play) the quitar
2)she___(to watch)a video after the children (to go)to bed
3)After John (to make)breakfast he(to phone)his friend
4)i(to be) very tired because i(to study  too much
5)they(to ride) their bikes before they (to meet)their friends