Give the correct form of the verbs in brackets: Simple Past or Past Progressive. 10. Mr. Green _________(drive) very fast when the accident happened. 11. She (play) ________the piano when our guests (arrive) ________last night. 12. Yesterday, while I (wait) ________for the bus, the rain (stop)________. 13. Last night, I (read) _________in my sitting room when the bell (ring) ________. 14. George ________(fall) off the ladder while he________(paint) the ceiling. 15. Last night I ________ (read) in bed when suddenly I________ (hear) a Giúp mình với mn