1. After David had gone home, we arrived.
2. Before we had lunch, we took a look ảound the shops.
3. When we got out of the office, the light had gone out.
4. By the time we started our work, she had explained everything dearly.
5. Before my mother came home, my father had watered all the plants in the garden.
6. It is very difficult to learn English very well.
7. She prefers watching TV to reading books.
8. The last time I visited HLB was 1998.
9. When did you learn English?
10. Nam used to go fishing with his father when was a little boy.
1. After David had gone home, we arrived.
2. Before we had lunch, we took a look around the shops.
3. When we got out of the office, the light had gone out.
4. By the time we started our work, she had explained everything dearly.
5. Before my mother came home, my father had watered all the plants in the garden.
6. It is very difficult to learn English very well.
7. She prefers watching TV to reading books.
8. The last time I visited HaLong Bay was in 1998.
9. When did you start learning English?
10. Nam used to go fishing with his father when was a little boy.