I.
1. The watch was bought at the shop.
2. The house was built in 1950.
3. The exercises were done last week.
4. The letters were sent by the students the day before yesterday.
5. The lesson was learnt two weeks ago.
6. Kieu story was written by Nguyen Du.
7. The dishes were washed by Daisy last night.
II.
(trong ảnh)