Вас раскройте скобки, употребив глагол в the past simple или the past continuous tense. 1. he (write) a letter when i (see) him. 2. harry (do) his work while his brothers (play) games. 3. the son (fall) down as he (run) for the bus. 4. we (sing) a song when john (come) into the room. 5. while a teacher (give) a lesson a small dog (walk) into the room. 6. when the phone (ring) i (work) in the garden. 7. my hat (flow) off when i (cross) the bridge.