Exercise 2: Chia dạng đúng của động từ trong ngoặc ở thì quá khứ đơn và quá khứ tiếp diễn 1. When I (arrive) 2. The light (go) 3. Bill (have) 4. When I (come). at this house, he still (sleep) out while we (have) breakfast when I (stop). to his house, he (work) 5. As we (cross). 6. Tom (see)___ 7. The children (play). 8. The bell (ring). 9. He (sit) 10. We (clean). the street, we (see)_ an accident. a serious accident while he (stand)_______ at the bus stop. football when their mother (come) back home. a bath. while Tom (take). in a car when I (see). him. dinner. at this house this morning. the house when she (come) yesterday. nmăn ở thì quá khứ hoàn thành.