----- Nội dung ảnh ----- (sleep) ___ 5. The light (go) ___ out while we (have) dinner. 6. While we (cross) ___ the street, we (meet) our teacher. 7. Tom (see) ___ an accident while he (stand) at the bus stop. 8. The children (play) ___ football when their mother (come) back home. 9. The bell (ring) ___ while Tom (take) a bath. 10. We (clean) ___ the house when she (come) yesterday.
