# 1pilihanHe __________ (sleep) when the doorbell __________ (ring).was sleeping, rangslept, was ringingslept, rangwas sleeping, was ringing
# 2pilihanI __________ (go) to the post office when the accident ____(happen).went, happened was going, happened go happened went, happened
# 3pilihanWe __________ (watch) TV when we __________ (hear) a loud noise.watched, heardwere watching, heardwatched, were hearingwere watching, were hearing
# 4pilihanJulie __________ (be) in the garden when Laurence __________ (arrive).was, was arrivingis, arrivedwas, arrivedwas, arrive