bai1. chia động từ trong ngoặc ở thì quá khứ tiếp diễn 1.i lost my keys when i (walk) home 2.it was raining while we (have) dinner. 3.i saw the department stores when i ( sit ) on the bus 4.her phone rang while she (talk ) to her new boss 5.my friends (drive) to work when they heard the new on the radio 6.he (ride) his bicycle when the cat ran across the road 7. we couldn't go to beach yesterday because it .(rain) 8.it was a lovely day . the sun was shining and the bird (sing) in the tree 9.the tourist lost his camera while he (walk ) around the city. 10.the lorry (go) very fast when it hit our car. bai2. chia động từ trong ngoặc ở thì quá khứ đơn hoặc quá khứ tiếp diễn 1. my friend harry off the lader while he the ceiling of his room.(fall,paint) 2.we thehouse in 2003. At that time it 150,000( buy,cost) 3.dad interested in buying a new car. ( not,be) 4.my sister for me at the airport terminal when i .(wait ,arrive) 5.a few nights ago , i a book when suddenly i a noise outside .A few teenagers loud music. ( read,hear,play) MỌI NGƯỜI GIÚP EM VỚI Ạ.