Put the verbs in brackets into the correct past tense
1)1.He ( to write) a letter when I (to see) him.
2.Harry (to do) his work while his brothers (to play) games.
3)We (to sing) a song when George (to come) into the room.
4) While the teacher (to give) a lesson, a small dog (to run) into the room.
5) My hat (to blow) off while i (to cross) the bridge/
6) He ( to lose) his pocter book while he (to see) the sights of Rome.
7)wHEN the phone (to ring) i (to work) in the garden.
8)Chilgren (to listen) to the teacher when they (to hear) the noise in the street.

1 was writing, saw2 was doing, were playing3 were singing, came4 was giving, ran5 blew, was crossing6 lost, was seeing7 rang, was working8 were listening, heard